15216382794125 has 16 divisors (see below), whose sum is σ = 19602627852288. Its totient is φ = 11780425386000.

The previous prime is 15216382794113. The next prime is 15216382794163. The reversal of 15216382794125 is 52149728361251.

It is a happy number.

It is not a de Polignac number, because 15216382794125 - 2¹⁴ = 15216382777741 is a prime.

It is a Duffinian number.

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, 1963400357 + ... + 1963408106.

It is an arithmetic number, because the mean of its divisors is an integer number (1225164240768).

Almost surely, 2^{15216382794125} is an apocalyptic number.

It is an amenable number.

15216382794125 is a deficient number, since it is larger than the sum of its proper divisors (4386245058163).

15216382794125 is an equidigital number, since it uses as much as digits as its factorization.

15216382794125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926808509 (or 3926808499 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 15216382794125 in words is "fifteen trillion, two hundred sixteen billion, three hundred eighty-two million, seven hundred ninety-four thousand, one hundred twenty-five".