20953865082590 has 32 divisors (see below), whose sum is σ = 41441784209280. Its totient is φ = 7564770122400.

The previous prime is 20953865082533. The next prime is 20953865082713. The reversal of 20953865082590 is 9528056835902.

It is a super-2 number, since 2×20953865082590² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685199396 + ... + 685229975.

It is an arithmetic number, because the mean of its divisors is an integer number (1295055756540).

Almost surely, 2^{20953865082590} is an apocalyptic number.

20953865082590 is a deficient number, since it is larger than the sum of its proper divisors (20487919126690).

20953865082590 is a wasteful number, since it uses less digits than its factorization.

20953865082590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370429528.

The product of its (nonzero) digits is 46656000, while the sum is 62.

The spelling of 20953865082590 in words is "twenty trillion, nine hundred fifty-three billion, eight hundred sixty-five million, eighty-two thousand, five hundred ninety".