15611611060 has 36 divisors (see below), whose sum is σ = 34600708548. Its totient is φ = 5915976192.

The previous prime is 15611611027. The next prime is 15611611061. The reversal of 15611611060 is 6011611651.

It can be written as a sum of positive squares in 2 ways, for example, as 11143758096 + 4467852964 = 105564^2 + 66842^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15611611061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073917 + ... + 1088356.

It is an arithmetic number, because the mean of its divisors is an integer number (961130793).

Almost surely, 2^15611611060 is an apocalyptic number.

15611611060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15611611060 is an abundant number, since it is smaller than the sum of its proper divisors (18989097488).

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

15611611060 is a wasteful number, since it uses less digits than its factorization.

15611611060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162320 (or 2162299 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 15611611060 in words is "fifteen billion, six hundred eleven million, six hundred eleven thousand, sixty".