20760667851 has 96 divisors (see below), whose sum is σ = 37075864320. Its totient is φ = 10189670400.

The previous prime is 20760667819. The next prime is 20760667861. The reversal of 20760667851 is 15876606702.

It is not a de Polignac number, because 20760667851 - 2⁵ = 20760667819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20760667851.

It is not an unprimeable number, because it can be changed into a prime (20760667861) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16006035 + ... + 16007331.

It is an arithmetic number, because the mean of its divisors is an integer number (386206920).

Almost surely, 2^20760667851 is an apocalyptic number.

20760667851 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20760667851 is a deficient number, since it is larger than the sum of its proper divisors (16315196469).

20760667851 is a wasteful number, since it uses less digits than its factorization.

20760667851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 20760667851 in words is "twenty billion, seven hundred sixty million, six hundred sixty-seven thousand, eight hundred fifty-one".