11551666615014 has 16 divisors (see below), whose sum is σ = 23106638039040. Its totient is φ = 3850004736840.

The previous prime is 11551666614953. The next prime is 11551666615031. The reversal of 11551666615014 is 41051666615511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137654934 + ... + 137738825.

It is an arithmetic number, because the mean of its divisors is an integer number (1444164877440).

Almost surely, 2^{11551666615014} is an apocalyptic number.

11551666615014 is an abundant number, since it is smaller than the sum of its proper divisors (11554971424026).

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

11551666615014 is a wasteful number, since it uses less digits than its factorization.

11551666615014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275400755.

The product of its (nonzero) digits is 648000, while the sum is 48.

The spelling of 11551666615014 in words is "eleven trillion, five hundred fifty-one billion, six hundred sixty-six million, six hundred fifteen thousand, fourteen".