20695701320 has 32 divisors (see below), whose sum is σ = 53217518400. Its totient is φ = 7095668928.

The previous prime is 20695701319. The next prime is 20695701329. The reversal of 20695701320 is 2310759602.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (20695701329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36956330 + ... + 36956889.

It is an arithmetic number, because the mean of its divisors is an integer number (1663047450).

Almost surely, 2^20695701320 is an apocalyptic number.

20695701320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20695701320 is an abundant number, since it is smaller than the sum of its proper divisors (32521817080).

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

20695701320 is a wasteful number, since it uses less digits than its factorization.

20695701320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73913237 (or 73913233 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 20695701320 in words is "twenty billion, six hundred ninety-five million, seven hundred one thousand, three hundred twenty".