20775900957702 has 96 divisors (see below), whose sum is σ = 47846438809344. Its totient is φ = 5963639774400.

The previous prime is 20775900957689. The next prime is 20775900957809.

20775900957702 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 211072983 + ... + 211171389.

It is an arithmetic number, because the mean of its divisors is an integer number (498400404264).

Almost surely, 2^{20775900957702} is an apocalyptic number.

20775900957702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20775900957702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23923219404672).

20775900957702 is an abundant number, since it is smaller than the sum of its proper divisors (27070537851642).

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

20775900957702 is a wasteful number, since it uses less digits than its factorization.

20775900957702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107322 (or 107303 counting only the distinct ones).

The product of its (nonzero) digits is 19448100, while the sum is 60.

The spelling of 20775900957702 in words is "twenty trillion, seven hundred seventy-five billion, nine hundred million, nine hundred fifty-seven thousand, seven hundred two".