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664161354001 = 31191196917791
BaseRepresentation
bin10011010101000110001…
…10100000000100010001
32100111022112202112202201
421222203012200010101
541340200301312001
61225040030443201
765661352235065
oct11524306400421
92314275675681
10664161354001
1123673a8514a2
12a8876363501
134a826581c32
142420768daa5
1512422ab9501
hex9aa31a0111

664161354001 has 8 divisors (see below), whose sum is σ = 664467148800. Its totient is φ = 663855624960.

The previous prime is 664161353981. The next prime is 664161354011. The reversal of 664161354001 is 100453161466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 664161354001 - 29 = 664161353489 is a prime.

It is a super-2 number, since 2×6641613540012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664161354011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37322416 + ... + 37340206.

It is an arithmetic number, because the mean of its divisors is an integer number (83058393600).

Almost surely, 2664161354001 is an apocalyptic number.

It is an amenable number.

664161354001 is a deficient number, since it is larger than the sum of its proper divisors (305794799).

664161354001 is a wasteful number, since it uses less digits than its factorization.

664161354001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32879.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 664161354001 in words is "six hundred sixty-four billion, one hundred sixty-one million, three hundred fifty-four thousand, one".

Divisors: 1 3119 11969 17791 37331311 55490129 212940479 664161354001