20150807652 has 18 divisors (see below), whose sum is σ = 50936763878. Its totient is φ = 6716935872.

The previous prime is 20150807543. The next prime is 20150807723. The reversal of 20150807652 is 25670805102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12475996416 + 7674811236 = 111696^2 + 87606^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 559744657 = 20150807652 / (2 + 0 + 1 + 5 + 0 + 8 + 0 + 7 + 6 + 5 + 2).

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, 279872293 + ... + 279872364.

Almost surely, 2^20150807652 is an apocalyptic number.

It is an amenable number.

20150807652 is an abundant number, since it is smaller than the sum of its proper divisors (30785956226).

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

20150807652 is a wasteful number, since it uses less digits than its factorization.

20150807652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559744667 (or 559744662 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 20150807652 in words is "twenty billion, one hundred fifty million, eight hundred seven thousand, six hundred fifty-two".