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164080084457 = 1634910036093
BaseRepresentation
bin1001100011001111101…
…1110110010111101001
3120200112000121220200002
42120303323312113221
510142014000200312
6203213301352345
714566025464112
oct2306373662751
9520460556602
10164080084457
1163649a25a93
12279721086b5
131261b64ac93
147d27753209
154404c814c2
hex2633ef65e9

164080084457 has 4 divisors (see below), whose sum is σ = 164090136900. Its totient is φ = 164070032016.

The previous prime is 164080084409. The next prime is 164080084459. The reversal of 164080084457 is 754480080461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33660873961 + 130419210496 = 183469^2 + 361136^2 .

It is a cyclic number.

It is not a de Polignac number, because 164080084457 - 230 = 163006342633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164080084459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5001698 + ... + 5034395.

It is an arithmetic number, because the mean of its divisors is an integer number (41022534225).

Almost surely, 2164080084457 is an apocalyptic number.

It is an amenable number.

164080084457 is a deficient number, since it is larger than the sum of its proper divisors (10052443).

164080084457 is a wasteful number, since it uses less digits than its factorization.

164080084457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052442.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 164080084457 in words is "one hundred sixty-four billion, eighty million, eighty-four thousand, four hundred fifty-seven".

Divisors: 1 16349 10036093 164080084457