20152616272 has 20 divisors (see below), whose sum is σ = 41342500116. Its totient is φ = 9483584000.

The previous prime is 20152616269. The next prime is 20152616273. The reversal of 20152616272 is 27261625102.

It can be written as a sum of positive squares in 2 ways, for example, as 13880609856 + 6272006416 = 117816^2 + 79196^2 .

It is a super-2 number, since 2×20152616272² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152616273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37044979 + ... + 37045522.

Almost surely, 2^20152616272 is an apocalyptic number.

It is an amenable number.

20152616272 is an abundant number, since it is smaller than the sum of its proper divisors (21189883844).

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

20152616272 is a wasteful number, since it uses less digits than its factorization.

20152616272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74090526 (or 74090520 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 20152616272 in words is "twenty billion, one hundred fifty-two million, six hundred sixteen thousand, two hundred seventy-two".