15145252544 has 14 divisors (see below), whose sum is σ = 30053860644. Its totient is φ = 7572626240.

The previous prime is 15145252541. The next prime is 15145252559. The reversal of 15145252544 is 44525254151.

It is a junction number, because it is equal to n+sod(n) for n = 15145252498 and 15145252507.

It is not an unprimeable number, because it can be changed into a prime (15145252541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118322222 + ... + 118322349.

Almost surely, 2^15145252544 is an apocalyptic number.

It is an amenable number.

15145252544 is a deficient number, since it is larger than the sum of its proper divisors (14908608100).

15145252544 is an equidigital number, since it uses as much as digits as its factorization.

15145252544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236644583 (or 236644573 counting only the distinct ones).

The product of its digits is 160000, while the sum is 38.

The spelling of 15145252544 in words is "fifteen billion, one hundred forty-five million, two hundred fifty-two thousand, five hundred forty-four".