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70661445464077 = 131992175978031
BaseRepresentation
bin10000000100010000100110…
…010110110011000000001101
3100021012011112121221210222121
4100010100212112303000031
533230204120014322302
6410141230411212541
720612056330224526
oct2004204626630015
9307164477853877
1070661445464077
1120573394908296
127b127b3147151
1330574656ca780
14136406454784d
158280ede3be37
hex4044265b300d

70661445464077 has 24 divisors (see below), whose sum is σ = 76525720212480. Its totient is φ = 64860454913760.

The previous prime is 70661445464039. The next prime is 70661445464123. The reversal of 70661445464077 is 77046454416607.

It is not a de Polignac number, because 70661445464077 - 211 = 70661445462029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70661445465077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 905517052 + ... + 905595082.

It is an arithmetic number, because the mean of its divisors is an integer number (3188571675520).

Almost surely, 270661445464077 is an apocalyptic number.

It is an amenable number.

70661445464077 is a deficient number, since it is larger than the sum of its proper divisors (5864274748403).

70661445464077 is a wasteful number, since it uses less digits than its factorization.

70661445464077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80201 (or 80002 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 61.

The spelling of 70661445464077 in words is "seventy trillion, six hundred sixty-one billion, four hundred forty-five million, four hundred sixty-four thousand, seventy-seven".

Divisors: 1 13 199 1759 2587 22867 39601 78031 350041 514813 1014403 4550533 15528169 69658159 137256529 201866197 905556067 1784334877 3090105631 27314049271 40171373203 355082640523 5435495804929 70661445464077