20555165343300 has 288 divisors, whose sum is σ = 68073046379520. Its totient is φ = 4691143641600.

The previous prime is 20555165343263. The next prime is 20555165343311. The reversal of 20555165343300 is 334356155502.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5568994455 + ... + 5568998145.

Almost surely, 2^{20555165343300} is an apocalyptic number.

20555165343300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20555165343300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34036523189760).

20555165343300 is an abundant number, since it is smaller than the sum of its proper divisors (47517881036220).

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

20555165343300 is a wasteful number, since it uses less digits than its factorization.

20555165343300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051 (or 7044 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 20555165343300 in words is "twenty trillion, five hundred fifty-five billion, one hundred sixty-five million, three hundred forty-three thousand, three hundred".