11551666652660 has 48 divisors (see below), whose sum is σ = 24419988190080. Its totient is φ = 4589909097600.

The previous prime is 11551666652573. The next prime is 11551666652741. The reversal of 11551666652660 is 6625666615511.

11551666652660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11551666652596 and 11551666652605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132827471 + ... + 132914409.

It is an arithmetic number, because the mean of its divisors is an integer number (508749753960).

Almost surely, 2^{11551666652660} is an apocalyptic number.

11551666652660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551666652660 is an abundant number, since it is smaller than the sum of its proper divisors (12868321537420).

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

11551666652660 is a wasteful number, since it uses less digits than its factorization.

11551666652660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131096 (or 131094 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 11551666652660 in words is "eleven trillion, five hundred fifty-one billion, six hundred sixty-six million, six hundred fifty-two thousand, six hundred sixty".