15605061020020 has 12 divisors (see below), whose sum is σ = 32770628142084. Its totient is φ = 6242024408000.

The previous prime is 15605061019957. The next prime is 15605061020033. The reversal of 15605061020020 is 2002016050651.

15605061020020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6935122105444 + 8669938914576 = 2633462^2 + 2944476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390126525481 + ... + 390126525520.

It is an arithmetic number, because the mean of its divisors is an integer number (2730885678507).

Almost surely, 2^{15605061020020} is an apocalyptic number.

15605061020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15605061020020 is an abundant number, since it is smaller than the sum of its proper divisors (17165567122064).

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

15605061020020 is a wasteful number, since it uses less digits than its factorization.

15605061020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780253051010 (or 780253051008 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 15605061020020 its reverse (2002016050651), we get a palindrome (17607077070671).

The spelling of 15605061020020 in words is "fifteen trillion, six hundred five billion, sixty-one million, twenty thousand, twenty".