220994690400 has 1296 divisors, whose sum is σ = 919012741920. Its totient is φ = 49809408000.

The previous prime is 220994690351. The next prime is 220994690419. The reversal of 220994690400 is 4096499022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 821541466 + ... + 821541734.

It is an arithmetic number, because the mean of its divisors is an integer number (709114770).

Almost surely, 2^220994690400 is an apocalyptic number.

220994690400 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 220994690400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459506370960).

220994690400 is an abundant number, since it is smaller than the sum of its proper divisors (698018051520).

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

220994690400 is a wasteful number, since it uses less digits than its factorization.

220994690400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 220994690400 in words is "two hundred twenty billion, nine hundred ninety-four million, six hundred ninety thousand, four hundred".