220396815966600 has 3456 divisors, whose sum is σ = 1014002149708800. Its totient is φ = 43774824038400.

The previous prime is 220396815966521. The next prime is 220396815966619. The reversal of 220396815966600 is 6669518693022.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 863 ways as a sum of consecutive naturals, for example, 51290855652 + ... + 51290859948.

It is an arithmetic number, because the mean of its divisors is an integer number (293403399800).

Almost surely, 2^{220396815966600} is an apocalyptic number.

220396815966600 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 220396815966600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507001074854400).

220396815966600 is an abundant number, since it is smaller than the sum of its proper divisors (793605333742200).

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

220396815966600 is a wasteful number, since it uses less digits than its factorization.

220396815966600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 220396815966600 in words is "two hundred twenty trillion, three hundred ninety-six billion, eight hundred fifteen million, nine hundred sixty-six thousand, six hundred".