20507107376 has 40 divisors (see below), whose sum is σ = 45450260640. Its totient is φ = 8780696064.

The previous prime is 20507107337. The next prime is 20507107399. The reversal of 20507107376 is 67370170502.

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, 39410 + ... + 206318.

It is an arithmetic number, because the mean of its divisors is an integer number (1136256516).

Almost surely, 2^20507107376 is an apocalyptic number.

It is an amenable number.

20507107376 is an abundant number, since it is smaller than the sum of its proper divisors (24943153264).

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

20507107376 is a wasteful number, since it uses less digits than its factorization.

20507107376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168021 (or 168015 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 38.

Adding to 20507107376 its reverse (67370170502), we get a palindrome (87877277878).

The spelling of 20507107376 in words is "twenty billion, five hundred seven million, one hundred seven thousand, three hundred seventy-six".