56521724207066 has 8 divisors (see below), whose sum is σ = 89769797270100. Its totient is φ = 26598458450368.

The previous prime is 56521724207063. The next prime is 56521724207089. The reversal of 56521724207066 is 66070242712565.

It can be written as a sum of positive squares in 2 ways, for example, as 51537538471225 + 4984185735841 = 7178965^2 + 2232529^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 56521724206999 and 56521724207017.

It is not an unprimeable number, because it can be changed into a prime (56521724207063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831201826541 + ... + 831201826608.

Almost surely, 2^{56521724207066} is an apocalyptic number.

56521724207066 is a deficient number, since it is larger than the sum of its proper divisors (33248073063034).

56521724207066 is a wasteful number, since it uses less digits than its factorization.

56521724207066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662403653168.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 56521724207066 in words is "fifty-six trillion, five hundred twenty-one billion, seven hundred twenty-four million, two hundred seven thousand, sixty-six".