11621615063 has 16 divisors (see below), whose sum is σ = 12152436480. Its totient is φ = 11099859456.

The previous prime is 11621615051. The next prime is 11621615077. The reversal of 11621615063 is 36051612611.

It is a cyclic number.

It is not a de Polignac number, because 11621615063 - 2²⁴ = 11604837847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621615023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822106 + ... + 1828472.

It is an arithmetic number, because the mean of its divisors is an integer number (759527280).

Almost surely, 2^11621615063 is an apocalyptic number.

11621615063 is a deficient number, since it is larger than the sum of its proper divisors (530821417).

11621615063 is a wasteful number, since it uses less digits than its factorization.

11621615063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7066.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 11621615063 in words is "eleven billion, six hundred twenty-one million, six hundred fifteen thousand, sixty-three".