15799253652 has 432 divisors, whose sum is σ = 51637622400. Its totient is φ = 4068320256.

The previous prime is 15799253611. The next prime is 15799253653. The reversal of 15799253652 is 25635299751.

15799253652 is a `hidden beast` number, since 1 + 57 + 9 + 9 + 2 + 536 + 52 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15799253653) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 139816348 + ... + 139816460.

Almost surely, 2^15799253652 is an apocalyptic number.

15799253652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15799253652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25818811200).

15799253652 is an abundant number, since it is smaller than the sum of its proper divisors (35838368748).

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

15799253652 is a wasteful number, since it uses less digits than its factorization.

15799253652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 205 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 54.

The spelling of 15799253652 in words is "fifteen billion, seven hundred ninety-nine million, two hundred fifty-three thousand, six hundred fifty-two".