15045604981506 has 96 divisors (see below), whose sum is σ = 35895212570880. Its totient is φ = 4516785772800.

The previous prime is 15045604981493. The next prime is 15045604981541. The reversal of 15045604981506 is 60518940654051.

It is a happy number.

15045604981506 is a `hidden beast` number, since 1 + 5 + 0 + 4 + 56 + 0 + 4 + 9 + 81 + 506 = 666.

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 47 ways as a sum of consecutive naturals, for example, 8843815 + ... + 10406933.

It is an arithmetic number, because the mean of its divisors is an integer number (373908464280).

Almost surely, 2^{15045604981506} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15045604981506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17947606285440).

15045604981506 is an abundant number, since it is smaller than the sum of its proper divisors (20849607589374).

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

15045604981506 is a wasteful number, since it uses less digits than its factorization.

15045604981506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563592 (or 1563589 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 15045604981506 in words is "fifteen trillion, forty-five billion, six hundred four million, nine hundred eighty-one thousand, five hundred six".