11615260780 has 12 divisors (see below), whose sum is σ = 24392047680. Its totient is φ = 4646104304.

The previous prime is 11615260777. The next prime is 11615260781. The reversal of 11615260780 is 8706251611.

It is not an unprimeable number, because it can be changed into a prime (11615260781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290381500 + ... + 290381539.

It is an arithmetic number, because the mean of its divisors is an integer number (2032670640).

Almost surely, 2^11615260780 is an apocalyptic number.

11615260780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11615260780 is an abundant number, since it is smaller than the sum of its proper divisors (12776786900).

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

11615260780 is a wasteful number, since it uses less digits than its factorization.

11615260780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580763048 (or 580763046 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 11615260780 in words is "eleven billion, six hundred fifteen million, two hundred sixty thousand, seven hundred eighty".