20930607516 has 48 divisors (see below), whose sum is σ = 60108414464. Its totient is φ = 5520159936.

The previous prime is 20930607487. The next prime is 20930607539. The reversal of 20930607516 is 61570603902.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9582520 + ... + 9584703.

Almost surely, 2^20930607516 is an apocalyptic number.

20930607516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20930607516 is an abundant number, since it is smaller than the sum of its proper divisors (39177806948).

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

20930607516 is a wasteful number, since it uses less digits than its factorization.

20930607516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19167250 (or 19167248 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 20930607516 in words is "twenty billion, nine hundred thirty million, six hundred seven thousand, five hundred sixteen".