63331505460 has 36 divisors (see below), whose sum is σ = 192105567108. Its totient is φ = 16888401408.

The previous prime is 63331505449. The next prime is 63331505563. The reversal of 63331505460 is 6450513336.

63331505460 is a `hidden beast` number, since 6 + 33 + 31 + 50 + 546 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14576215824 + 48755289636 = 120732^2 + 220806^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175920669 + ... + 175921028.

It is an arithmetic number, because the mean of its divisors is an integer number (5336265753).

Almost surely, 2^63331505460 is an apocalyptic number.

63331505460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63331505460 is an abundant number, since it is smaller than the sum of its proper divisors (128774061648).

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

63331505460 is a wasteful number, since it uses less digits than its factorization.

63331505460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351841712 (or 351841707 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 63331505460 in words is "sixty-three billion, three hundred thirty-one million, five hundred five thousand, four hundred sixty".