15542442504 has 96 divisors (see below), whose sum is σ = 42751631520. Its totient is φ = 5100496128.

The previous prime is 15542442473. The next prime is 15542442523. The reversal of 15542442504 is 40524424551.

15542442504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1249564 + ... + 1261940.

It is an arithmetic number, because the mean of its divisors is an integer number (445329495).

Almost surely, 2^15542442504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15542442504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21375815760).

15542442504 is an abundant number, since it is smaller than the sum of its proper divisors (27209189016).

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

15542442504 is a wasteful number, since it uses less digits than its factorization.

15542442504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12659 (or 12652 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 15542442504 in words is "fifteen billion, five hundred forty-two million, four hundred forty-two thousand, five hundred four".