11515151010 has 32 divisors (see below), whose sum is σ = 30148759872. Its totient is φ = 2791551680.

The previous prime is 11515150993. The next prime is 11515151033. The reversal of 11515151010 is 1015151511.

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, 17446869 + ... + 17447528.

It is an arithmetic number, because the mean of its divisors is an integer number (942148746).

Almost surely, 2^11515151010 is an apocalyptic number.

11515151010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11515151010 is an abundant number, since it is smaller than the sum of its proper divisors (18633608862).

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

11515151010 is a wasteful number, since it uses less digits than its factorization.

11515151010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34894418.

The product of its (nonzero) digits is 125, while the sum is 21.

The spelling of 11515151010 in words is "eleven billion, five hundred fifteen million, one hundred fifty-one thousand, ten".