56667655442641 has 8 divisors (see below), whose sum is σ = 58625361587520. Its totient is φ = 54710192568528.

The previous prime is 56667655442639. The next prime is 56667655442681. The reversal of 56667655442641 is 14624455676665.

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

It is not a de Polignac number, because 56667655442641 - 2¹ = 56667655442639 is a prime.

It is a super-2 number, since 2×56667655442641² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56667655442681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60343701 + ... + 61275586.

It is an arithmetic number, because the mean of its divisors is an integer number (7328170198440).

Almost surely, 2^{56667655442641} is an apocalyptic number.

It is an amenable number.

56667655442641 is a deficient number, since it is larger than the sum of its proper divisors (1957706144879).

56667655442641 is a wasteful number, since it uses less digits than its factorization.

56667655442641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121635383.

The product of its digits is 870912000, while the sum is 67.

The spelling of 56667655442641 in words is "fifty-six trillion, six hundred sixty-seven billion, six hundred fifty-five million, four hundred forty-two thousand, six hundred forty-one".