20952358140 has 48 divisors (see below), whose sum is σ = 67047547392. Its totient is φ = 4789110336.

The previous prime is 20952358127. The next prime is 20952358153. The reversal of 20952358140 is 4185325902.

It is an interprime number because it is at equal distance from previous prime (20952358127) and next prime (20952358153).

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, 24942864 + ... + 24943703.

It is an arithmetic number, because the mean of its divisors is an integer number (1396823904).

Almost surely, 2^20952358140 is an apocalyptic number.

20952358140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20952358140 is an abundant number, since it is smaller than the sum of its proper divisors (46095189252).

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

20952358140 is a wasteful number, since it uses less digits than its factorization.

20952358140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49886586 (or 49886584 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 20952358140 in words is "twenty billion, nine hundred fifty-two million, three hundred fifty-eight thousand, one hundred forty".