56145161506 has 32 divisors (see below), whose sum is σ = 97306699392. Its totient is φ = 23798085120.

The previous prime is 56145161483. The next prime is 56145161509. The reversal of 56145161506 is 60516154165.

It is not an unprimeable number, because it can be changed into a prime (56145161509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120260 + ... + 2146576.

It is an arithmetic number, because the mean of its divisors is an integer number (3040834356).

Almost surely, 2^56145161506 is an apocalyptic number.

56145161506 is a deficient number, since it is larger than the sum of its proper divisors (41161537886).

56145161506 is a wasteful number, since it uses less digits than its factorization.

56145161506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27994.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 56145161506 in words is "fifty-six billion, one hundred forty-five million, one hundred sixty-one thousand, five hundred six".