13156625450 has 12 divisors (see below), whose sum is σ = 24471323430. Its totient is φ = 5262650160.

The previous prime is 13156625441. The next prime is 13156625453. The reversal of 13156625450 is 5452665131.

It can be written as a sum of positive squares in 3 ways, for example, as 8439545689 + 4717079761 = 91867^2 + 68681^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13156625453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131566205 + ... + 131566304.

Almost surely, 2^13156625450 is an apocalyptic number.

13156625450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13156625450 is a deficient number, since it is larger than the sum of its proper divisors (11314697980).

13156625450 is a wasteful number, since it uses less digits than its factorization.

13156625450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263132521 (or 263132516 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 13156625450 in words is "thirteen billion, one hundred fifty-six million, six hundred twenty-five thousand, four hundred fifty".