11500051000 has 32 divisors (see below), whose sum is σ = 26910121680. Its totient is φ = 4600020000.

The previous prime is 11500050977. The next prime is 11500051033. The reversal of 11500051000 is 15000511.

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, 5749026 + ... + 5751025.

Almost surely, 2^11500051000 is an apocalyptic number.

11500051000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11500051000 is an abundant number, since it is smaller than the sum of its proper divisors (15410070680).

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

11500051000 is a wasteful number, since it uses less digits than its factorization.

11500051000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500072 (or 11500058 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

Adding to 11500051000 its reverse (15000511), we get a palindrome (11515051511).

The spelling of 11500051000 in words is "eleven billion, five hundred million, fifty-one thousand".