11621516986 has 16 divisors (see below), whose sum is σ = 17648826624. Its totient is φ = 5738878224.

The previous prime is 11621516971. The next prime is 11621516987. The reversal of 11621516986 is 68961512611.

11621516986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11621516987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 152461.

It is an arithmetic number, because the mean of its divisors is an integer number (1103051664).

Almost surely, 2^11621516986 is an apocalyptic number.

11621516986 is a deficient number, since it is larger than the sum of its proper divisors (6027309638).

11621516986 is a wasteful number, since it uses less digits than its factorization.

11621516986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151725.

The product of its digits is 155520, while the sum is 46.

The spelling of 11621516986 in words is "eleven billion, six hundred twenty-one million, five hundred sixteen thousand, nine hundred eighty-six".