566535309172 has 24 divisors (see below), whose sum is σ = 1182334559616. Its totient is φ = 232244287968.

The previous prime is 566535309049. The next prime is 566535309209. The reversal of 566535309172 is 271903535665.

It is a super-2 number, since 2×566535309172² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439855963 + ... + 439857250.

It is an arithmetic number, because the mean of its divisors is an integer number (49263939984).

Almost surely, 2^566535309172 is an apocalyptic number.

It is an amenable number.

566535309172 is an abundant number, since it is smaller than the sum of its proper divisors (615799250444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566535309172 is a wasteful number, since it uses less digits than its factorization.

566535309172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879713247 (or 879713245 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 52.

The spelling of 566535309172 in words is "five hundred sixty-six billion, five hundred thirty-five million, three hundred nine thousand, one hundred seventy-two".