63311662056671 has 32 divisors (see below), whose sum is σ = 74188994127360. Its totient is φ = 52894983398400.

The previous prime is 63311662056659. The next prime is 63311662056679. The reversal of 63311662056671 is 17665026611336.

It is a cyclic number.

It is not a de Polignac number, because 63311662056671 - 2⁶ = 63311662056607 is a prime.

It is a super-2 number, since 2×63311662056671² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63311662056679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1564814840 + ... + 1564855298.

It is an arithmetic number, because the mean of its divisors is an integer number (2318406066480).

Almost surely, 2^{63311662056671} is an apocalyptic number.

63311662056671 is a deficient number, since it is larger than the sum of its proper divisors (10877332070689).

63311662056671 is a wasteful number, since it uses less digits than its factorization.

63311662056671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45375.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 63311662056671 in words is "sixty-three trillion, three hundred eleven billion, six hundred sixty-two million, fifty-six thousand, six hundred seventy-one".