20310656770 has 16 divisors (see below), whose sum is σ = 36620023608. Its totient is φ = 8110742400.

The previous prime is 20310656749. The next prime is 20310656771. The reversal of 20310656770 is 7765601302.

It can be written as a sum of positive squares in 4 ways, for example, as 14537848329 + 5772808441 = 120573^2 + 75979^2 .

It is not an unprimeable number, because it can be changed into a prime (20310656771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683729 + ... + 1695748.

Almost surely, 2^20310656770 is an apocalyptic number.

20310656770 is a deficient number, since it is larger than the sum of its proper divisors (16309366838).

20310656770 is a wasteful number, since it uses less digits than its factorization.

20310656770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380085.

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 20310656770 in words is "twenty billion, three hundred ten million, six hundred fifty-six thousand, seven hundred seventy".