20953377335902 has 32 divisors (see below), whose sum is σ = 34439035887360. Its totient is φ = 9482136765120.

The previous prime is 20953377335897. The next prime is 20953377335909.

20953377335902 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20953377335909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39220249 + ... + 39750907.

It is an arithmetic number, because the mean of its divisors is an integer number (1076219871480).

Almost surely, 2^{20953377335902} is an apocalyptic number.

20953377335902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20953377335902 is a deficient number, since it is larger than the sum of its proper divisors (13485658551458).

20953377335902 is a wasteful number, since it uses less digits than its factorization.

20953377335902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538608.

The product of its (nonzero) digits is 32148900, while the sum is 58.

The spelling of 20953377335902 in words is "twenty trillion, nine hundred fifty-three billion, three hundred seventy-seven million, three hundred thirty-five thousand, nine hundred two".