20134532516 has 24 divisors (see below), whose sum is σ = 40359990720. Its totient is φ = 8609601312.

The previous prime is 20134532497. The next prime is 20134532531. The reversal of 20134532516 is 61523543102.

It is a happy number.

It is a super-2 number, since 2×20134532516² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799211 + ... + 824018.

It is an arithmetic number, because the mean of its divisors is an integer number (1681666280).

Almost surely, 2^20134532516 is an apocalyptic number.

It is an amenable number.

20134532516 is an abundant number, since it is smaller than the sum of its proper divisors (20225458204).

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

20134532516 is a wasteful number, since it uses less digits than its factorization.

20134532516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623683 (or 1623681 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20134532516 in words is "twenty billion, one hundred thirty-four million, five hundred thirty-two thousand, five hundred sixteen".