11515442610 has 64 divisors (see below), whose sum is σ = 31651430400. Its totient is φ = 2626583232.

The previous prime is 11515442579. The next prime is 11515442611. The reversal of 11515442610 is 1624451511.

It is a super-2 number, since 2×11515442610² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11515442611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43351 + ... + 157829.

It is an arithmetic number, because the mean of its divisors is an integer number (494553600).

Almost surely, 2^11515442610 is an apocalyptic number.

11515442610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11515442610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15825715200).

11515442610 is an abundant number, since it is smaller than the sum of its proper divisors (20135987790).

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

11515442610 is a wasteful number, since it uses less digits than its factorization.

11515442610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114975.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 11515442610 in words is "eleven billion, five hundred fifteen million, four hundred forty-two thousand, six hundred ten".