15115302352542 has 32 divisors (see below), whose sum is σ = 34549383398400. Its totient is φ = 4318642705248.

The previous prime is 15115302352481. The next prime is 15115302352559. The reversal of 15115302352542 is 24525320351151.

It is a self number, because there is not a number n which added to its sum of digits gives 15115302352542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18010459 + ... + 18831017.

It is an arithmetic number, because the mean of its divisors is an integer number (1079668231200).

Almost surely, 2^{15115302352542} is an apocalyptic number.

15115302352542 is an abundant number, since it is smaller than the sum of its proper divisors (19434081045858).

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

15115302352542 is a wasteful number, since it uses less digits than its factorization.

15115302352542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259160.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 15115302352542 in words is "fifteen trillion, one hundred fifteen billion, three hundred two million, three hundred fifty-two thousand, five hundred forty-two".