56661105224644 has 12 divisors (see below), whose sum is σ = 104375720150800. Its totient is φ = 26839470895848.

The previous prime is 56661105224641. The next prime is 56661105224671. The reversal of 56661105224644 is 44642250116665.

It is a super-3 number, since 3×56661105224644³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56661105224591 and 56661105224600.

It is not an unprimeable number, because it can be changed into a prime (56661105224641) 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, 372770429034 + ... + 372770429185.

Almost surely, 2^{56661105224644} is an apocalyptic number.

It is an amenable number.

56661105224644 is a deficient number, since it is larger than the sum of its proper divisors (47714614926156).

56661105224644 is a wasteful number, since it uses less digits than its factorization.

56661105224644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745540858242 (or 745540858240 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 56661105224644 in words is "fifty-six trillion, six hundred sixty-one billion, one hundred five million, two hundred twenty-four thousand, six hundred forty-four".