56156161066 has 16 divisors (see below), whose sum is σ = 85517788608. Its totient is φ = 27651131200.

The previous prime is 56156161057. The next prime is 56156161067. The reversal of 56156161066 is 66016165165.

It is not an unprimeable number, because it can be changed into a prime (56156161067) 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, 99340 + ... + 349543.

It is an arithmetic number, because the mean of its divisors is an integer number (5344861788).

Almost surely, 2^56156161066 is an apocalyptic number.

56156161066 is a deficient number, since it is larger than the sum of its proper divisors (29361627542).

56156161066 is a wasteful number, since it uses less digits than its factorization.

56156161066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449837.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 56156161066 in words is "fifty-six billion, one hundred fifty-six million, one hundred sixty-one thousand, sixty-six".