13151601625 has 32 divisors (see below), whose sum is σ = 17400962592. Its totient is φ = 9889689600.

The previous prime is 13151601599. The next prime is 13151601629. The reversal of 13151601625 is 52610615131.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1011748864 + 12139852761 = 31808^2 + 110181^2 .

It is not a de Polignac number, because 13151601625 - 2⁷ = 13151601497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13151601629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1860097 + ... + 1867153.

It is an arithmetic number, because the mean of its divisors is an integer number (543780081).

Almost surely, 2^13151601625 is an apocalyptic number.

It is an amenable number.

13151601625 is a deficient number, since it is larger than the sum of its proper divisors (4249360967).

13151601625 is an equidigital number, since it uses as much as digits as its factorization.

13151601625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 13151601625 in words is "thirteen billion, one hundred fifty-one million, six hundred one thousand, six hundred twenty-five".