15420363120 has 160 divisors (see below), whose sum is σ = 53412652800. Its totient is φ = 4089021696.

The previous prime is 15420363113. The next prime is 15420363157. The reversal of 15420363120 is 2136302451.

15420363120 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 0 + 3 + 631 + 20 = 666.

It is a super-2 number, since 2×15420363120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366699 + ... + 406581.

It is an arithmetic number, because the mean of its divisors is an integer number (333829080).

Almost surely, 2^15420363120 is an apocalyptic number.

15420363120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15420363120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26706326400).

15420363120 is an abundant number, since it is smaller than the sum of its proper divisors (37992289680).

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

15420363120 is a wasteful number, since it uses less digits than its factorization.

15420363120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084 (or 40072 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 15420363120 its reverse (2136302451), we get a palindrome (17556665571).

The spelling of 15420363120 in words is "fifteen billion, four hundred twenty million, three hundred sixty-three thousand, one hundred twenty".