20670769260 has 72 divisors (see below), whose sum is σ = 62879150880. Its totient is φ = 5496572928.

The previous prime is 20670769157. The next prime is 20670769261. The reversal of 20670769260 is 6296707602.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20670769261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99120 + ... + 226199.

It is an arithmetic number, because the mean of its divisors is an integer number (873321540).

Almost surely, 2^20670769260 is an apocalyptic number.

20670769260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20670769260 is an abundant number, since it is smaller than the sum of its proper divisors (42208381620).

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

20670769260 is a wasteful number, since it uses less digits than its factorization.

20670769260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325687 (or 325682 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 20670769260 in words is "twenty billion, six hundred seventy million, seven hundred sixty-nine thousand, two hundred sixty".