15000163400 has 24 divisors (see below), whose sum is σ = 34875380370. Its totient is φ = 6000065280.

The previous prime is 15000163393. The next prime is 15000163433. The reversal of 15000163400 is 436100051.

It can be written as a sum of positive squares in 3 ways, for example, as 11298414436 + 3701748964 = 106294^2 + 60842^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37500209 + ... + 37500608.

Almost surely, 2^15000163400 is an apocalyptic number.

15000163400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15000163400 is an abundant number, since it is smaller than the sum of its proper divisors (19875216970).

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

15000163400 is a wasteful number, since it uses less digits than its factorization.

15000163400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75000833 (or 75000824 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 15000163400 its reverse (436100051), we get a palindrome (15436263451).

The spelling of 15000163400 in words is "fifteen billion, one hundred sixty-three thousand, four hundred".