63191315660 has 24 divisors (see below), whose sum is σ = 144765560016. Its totient is φ = 22978660160.

The previous prime is 63191315659. The next prime is 63191315729. The reversal of 63191315660 is 6651319136.

It is a super-3 number, since 3×63191315660³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143616407 + ... + 143616846.

It is an arithmetic number, because the mean of its divisors is an integer number (6031898334).

Almost surely, 2^63191315660 is an apocalyptic number.

It is an amenable number.

63191315660 is an abundant number, since it is smaller than the sum of its proper divisors (81574244356).

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

63191315660 is a wasteful number, since it uses less digits than its factorization.

63191315660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287233273 (or 287233271 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 63191315660 in words is "sixty-three billion, one hundred ninety-one million, three hundred fifteen thousand, six hundred sixty".