11616502521 has 16 divisors (see below), whose sum is σ = 17405329536. Its totient is φ = 6837806976.

The previous prime is 11616502519. The next prime is 11616502603. The reversal of 11616502521 is 12520561611.

It is not a de Polignac number, because 11616502521 - 2¹ = 11616502519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11616542521) 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, 6474300 + ... + 6476093.

It is an arithmetic number, because the mean of its divisors is an integer number (1087833096).

Almost surely, 2^11616502521 is an apocalyptic number.

It is an amenable number.

11616502521 is a deficient number, since it is larger than the sum of its proper divisors (5788827015).

11616502521 is a wasteful number, since it uses less digits than its factorization.

11616502521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950432.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11616502521 in words is "eleven billion, six hundred sixteen million, five hundred two thousand, five hundred twenty-one".