15680154120737 has 2 divisors, whose sum is σ = 15680154120738. Its totient is φ = 15680154120736.

The previous prime is 15680154120713. The next prime is 15680154120809. The reversal of 15680154120737 is 73702145108651.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10993972592656 + 4686181528081 = 3315716^2 + 2164759^2 .

It is a cyclic number.

It is not a de Polignac number, because 15680154120737 - 2²² = 15680149926433 is a prime.

It is not a weakly prime, because it can be changed into another prime (15680154120637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7840077060368 + 7840077060369.

It is an arithmetic number, because the mean of its divisors is an integer number (7840077060369).

Almost surely, 2^{15680154120737} is an apocalyptic number.

It is an amenable number.

15680154120737 is a deficient number, since it is larger than the sum of its proper divisors (1).

15680154120737 is an equidigital number, since it uses as much as digits as its factorization.

15680154120737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 15680154120737 in words is "fifteen trillion, six hundred eighty billion, one hundred fifty-four million, one hundred twenty thousand, seven hundred thirty-seven".