556161556001 has 8 divisors (see below), whose sum is σ = 560638478400. Its totient is φ = 551696462928.

The previous prime is 556161555967. The next prime is 556161556019. The reversal of 556161556001 is 100655161655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556161556001 is a prime.

It is a super-2 number, since 2×556161556001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 556161556001.

It is not an unprimeable number, because it can be changed into a prime (556161556051) 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, 2862911 + ... + 3050996.

It is an arithmetic number, because the mean of its divisors is an integer number (70079809800).

Almost surely, 2^556161556001 is an apocalyptic number.

It is an amenable number.

556161556001 is a deficient number, since it is larger than the sum of its proper divisors (4476922399).

556161556001 is a wasteful number, since it uses less digits than its factorization.

556161556001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914663.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 556161556001 in words is "five hundred fifty-six billion, one hundred sixty-one million, five hundred fifty-six thousand, one".