15680154120738 has 16 divisors (see below), whose sum is σ = 31417639707360. Its totient is φ = 5217162795936.

The previous prime is 15680154120737. The next prime is 15680154120809. The reversal of 15680154120738 is 83702145108651.

It is not an unprimeable number, because it can be changed into a prime (15680154120737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388807523 + ... + 2388814086.

It is an arithmetic number, because the mean of its divisors is an integer number (1963602481710).

Almost surely, 2^{15680154120738} is an apocalyptic number.

15680154120738 is an abundant number, since it is smaller than the sum of its proper divisors (15737485586622).

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

15680154120738 is a wasteful number, since it uses less digits than its factorization.

15680154120738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777622161.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 15680154120738 in words is "fifteen trillion, six hundred eighty billion, one hundred fifty-four million, one hundred twenty thousand, seven hundred thirty-eight".