20155525263200 has 36 divisors (see below), whose sum is σ = 49204676050740. Its totient is φ = 8062210104960.

The previous prime is 20155525263187. The next prime is 20155525263217. The reversal of 20155525263200 is 236252555102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12597202490 + ... + 12597204089.

It is an arithmetic number, because the mean of its divisors is an integer number (1366796556965).

Almost surely, 2^{20155525263200} is an apocalyptic number.

20155525263200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20155525263200 is an abundant number, since it is smaller than the sum of its proper divisors (29049150787540).

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

20155525263200 is a wasteful number, since it uses less digits than its factorization.

20155525263200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25194406599 (or 25194406586 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 20155525263200 in words is "twenty trillion, one hundred fifty-five billion, five hundred twenty-five million, two hundred sixty-three thousand, two hundred".