11551965090 has 16 divisors (see below), whose sum is σ = 27724716288. Its totient is φ = 3080524016.

The previous prime is 11551965053. The next prime is 11551965133. The reversal of 11551965090 is 9056915511.

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, 192532722 + ... + 192532781.

It is an arithmetic number, because the mean of its divisors is an integer number (1732794768).

Almost surely, 2^11551965090 is an apocalyptic number.

11551965090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11551965090 is an abundant number, since it is smaller than the sum of its proper divisors (16172751198).

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

11551965090 is a wasteful number, since it uses less digits than its factorization.

11551965090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385065513.

The product of its (nonzero) digits is 60750, while the sum is 42.

The spelling of 11551965090 in words is "eleven billion, five hundred fifty-one million, nine hundred sixty-five thousand, ninety".