11621615064 has 16 divisors (see below), whose sum is σ = 29054037720. Its totient is φ = 3873871680.

The previous prime is 11621615051. The next prime is 11621615077. The reversal of 11621615064 is 46051612611.

It is an interprime number because it is at equal distance from previous prime (11621615051) and next prime (11621615077).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242116957 + ... + 242117004.

Almost surely, 2^11621615064 is an apocalyptic number.

It is an amenable number.

11621615064 is an abundant number, since it is smaller than the sum of its proper divisors (17432422656).

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

11621615064 is a wasteful number, since it uses less digits than its factorization.

11621615064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484233970 (or 484233966 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 11621615064 in words is "eleven billion, six hundred twenty-one million, six hundred fifteen thousand, sixty-four".