561745103272 has 16 divisors (see below), whose sum is σ = 1053688255200. Its totient is φ = 280761568560.

The previous prime is 561745103267. The next prime is 561745103303. The reversal of 561745103272 is 272301547165.

It is a happy number.

It is a super-2 number, since 2×561745103272² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13851372 + ... + 13891867.

It is an arithmetic number, because the mean of its divisors is an integer number (65855515950).

Almost surely, 2^561745103272 is an apocalyptic number.

It is an amenable number.

561745103272 is a deficient number, since it is larger than the sum of its proper divisors (491943151928).

561745103272 is a wasteful number, since it uses less digits than its factorization.

561745103272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27745776 (or 27745772 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 561745103272 in words is "five hundred sixty-one billion, seven hundred forty-five million, one hundred three thousand, two hundred seventy-two".