15420111360 has 80 divisors (see below), whose sum is σ = 49296193056. Its totient is φ = 4112027648.

The previous prime is 15420111347. The next prime is 15420111361. The reversal of 15420111360 is 6311102451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 15420111360.

It is not an unprimeable number, because it can be changed into a prime (15420111361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996234 + ... + 1011593.

Almost surely, 2^15420111360 is an apocalyptic number.

15420111360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15420111360 is an abundant number, since it is smaller than the sum of its proper divisors (33876081696).

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

15420111360 is an equidigital number, since it uses as much as digits as its factorization.

15420111360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007853 (or 2007837 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

It can be divided in two parts, 154201 and 11360, that added together give a palindrome (165561).

The spelling of 15420111360 in words is "fifteen billion, four hundred twenty million, one hundred eleven thousand, three hundred sixty".