15420014015 has 32 divisors (see below), whose sum is σ = 22625456640. Its totient is φ = 9852969600.

The previous prime is 15420014003. The next prime is 15420014041. The reversal of 15420014015 is 51041002451.

It is not a de Polignac number, because 15420014015 - 2²⁶ = 15352905151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149501 + ... + 230630.

It is an arithmetic number, because the mean of its divisors is an integer number (707045520).

Almost surely, 2^15420014015 is an apocalyptic number.

15420014015 is a deficient number, since it is larger than the sum of its proper divisors (7205442625).

15420014015 is a wasteful number, since it uses less digits than its factorization.

15420014015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380223.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 15420014015 its reverse (51041002451), we get a palindrome (66461016466).

The spelling of 15420014015 in words is "fifteen billion, four hundred twenty million, fourteen thousand, fifteen".