11521560154 has 16 divisors (see below), whose sum is σ = 19420958592. Its totient is φ = 5086441008.

The previous prime is 11521560151. The next prime is 11521560163. The reversal of 11521560154 is 45106512511.

It is not an unprimeable number, because it can be changed into a prime (11521560151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9632814 + ... + 9634009.

It is an arithmetic number, because the mean of its divisors is an integer number (1213809912).

Almost surely, 2^11521560154 is an apocalyptic number.

11521560154 is a deficient number, since it is larger than the sum of its proper divisors (7899398438).

11521560154 is a wasteful number, since it uses less digits than its factorization.

11521560154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19266861.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 11521560154 in words is "eleven billion, five hundred twenty-one million, five hundred sixty thousand, one hundred fifty-four".