11551552650 has 72 divisors (see below), whose sum is σ = 33856565184. Its totient is φ = 2800375200.

The previous prime is 11551552633. The next prime is 11551552669. The reversal of 11551552650 is 5625515511.

11551552650 is a `hidden beast` number, since 1 + 1 + 5 + 51 + 552 + 6 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1161874 + ... + 1171773.

It is an arithmetic number, because the mean of its divisors is an integer number (470230072).

Almost surely, 2^11551552650 is an apocalyptic number.

11551552650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11551552650 is an abundant number, since it is smaller than the sum of its proper divisors (22305012534).

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

11551552650 is a wasteful number, since it uses less digits than its factorization.

11551552650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333676 (or 2333668 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 11551552650 in words is "eleven billion, five hundred fifty-one million, five hundred fifty-two thousand, six hundred fifty".