15164854420 has 24 divisors (see below), whose sum is σ = 33719500584. Its totient is φ = 5709121536.

The previous prime is 15164854417. The next prime is 15164854423. The reversal of 15164854420 is 2445846151.

It is an interprime number because it is at equal distance from previous prime (15164854417) and next prime (15164854423).

It can be written as a sum of positive squares in 4 ways, for example, as 7273019524 + 7891834896 = 85282^2 + 88836^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15164854423) 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, 22300917 + ... + 22301596.

It is an arithmetic number, because the mean of its divisors is an integer number (1404979191).

Almost surely, 2^15164854420 is an apocalyptic number.

15164854420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15164854420 is an abundant number, since it is smaller than the sum of its proper divisors (18554646164).

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

15164854420 is a wasteful number, since it uses less digits than its factorization.

15164854420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44602539 (or 44602537 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 15164854420 in words is "fifteen billion, one hundred sixty-four million, eight hundred fifty-four thousand, four hundred twenty".