20152070516 has 12 divisors (see below), whose sum is σ = 35269315620. Its totient is φ = 10075123200.

The previous prime is 20152070513. The next prime is 20152070539. The reversal of 20152070516 is 61507025102.

It can be written as a sum of positive squares in 2 ways, for example, as 11923766416 + 8228304100 = 109196^2 + 90710^2 .

It is a super-2 number, since 2×20152070516² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152070513) 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, 177035 + ... + 267666.

It is an arithmetic number, because the mean of its divisors is an integer number (2939109635).

Almost surely, 2^20152070516 is an apocalyptic number.

It is an amenable number.

20152070516 is a deficient number, since it is larger than the sum of its proper divisors (15117245104).

20152070516 is a wasteful number, since it uses less digits than its factorization.

20152070516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456034 (or 456032 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

Adding to 20152070516 its reverse (61507025102), we get a palindrome (81659095618).

The spelling of 20152070516 in words is "twenty billion, one hundred fifty-two million, seventy thousand, five hundred sixteen".