63145655661156 has 24 divisors (see below), whose sum is σ = 147387254696640. Its totient is φ = 21041781674592.

The previous prime is 63145655661149. The next prime is 63145655661163. The reversal of 63145655661156 is 65116655654136.

It is an interprime number because it is at equal distance from previous prime (63145655661149) and next prime (63145655661163).

It is a self number, because there is not a number n which added to its sum of digits gives 63145655661156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846237696 + ... + 846312311.

It is an arithmetic number, because the mean of its divisors is an integer number (6141135612360).

Almost surely, 2^{63145655661156} is an apocalyptic number.

It is an amenable number.

63145655661156 is an abundant number, since it is smaller than the sum of its proper divisors (84241599035484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63145655661156 is a wasteful number, since it uses less digits than its factorization.

63145655661156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692553123 (or 1692553121 counting only the distinct ones).

The product of its digits is 58320000, while the sum is 60.

The spelling of 63145655661156 in words is "sixty-three trillion, one hundred forty-five billion, six hundred fifty-five million, six hundred sixty-one thousand, one hundred fifty-six".