63112434664 has 8 divisors (see below), whose sum is σ = 118335815010. Its totient is φ = 31556217328.

The previous prime is 63112434661. The next prime is 63112434667. The reversal of 63112434664 is 46643421136.

It is an interprime number because it is at equal distance from previous prime (63112434661) and next prime (63112434667).

It can be written as a sum of positive squares in only one way, i.e., 62771293764 + 341140900 = 250542^2 + 18470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (63112434661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3944527159 + ... + 3944527174.

Almost surely, 2^63112434664 is an apocalyptic number.

It is an amenable number.

63112434664 is a deficient number, since it is larger than the sum of its proper divisors (55223380346).

63112434664 is a wasteful number, since it uses less digits than its factorization.

63112434664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889054339 (or 7889054335 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The spelling of 63112434664 in words is "sixty-three billion, one hundred twelve million, four hundred thirty-four thousand, six hundred sixty-four".