20306534416 has 20 divisors (see below), whose sum is σ = 44964469312. Its totient is φ = 8702800416.

The previous prime is 20306534389. The next prime is 20306534431. The reversal of 20306534416 is 61443560302.

It is a super-2 number, since 2×20306534416² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90654060 + ... + 90654283.

Almost surely, 2^20306534416 is an apocalyptic number.

It is an amenable number.

20306534416 is an abundant number, since it is smaller than the sum of its proper divisors (24657934896).

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

20306534416 is a wasteful number, since it uses less digits than its factorization.

20306534416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181308358 (or 181308352 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20306534416 in words is "twenty billion, three hundred six million, five hundred thirty-four thousand, four hundred sixteen".