220949945552 has 20 divisors (see below), whose sum is σ = 489246308256. Its totient is φ = 94692833760.

The previous prime is 220949945549. The next prime is 220949945563. The reversal of 220949945552 is 255549949022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986383574 + ... + 986383797.

Almost surely, 2^220949945552 is an apocalyptic number.

It is an amenable number.

220949945552 is an abundant number, since it is smaller than the sum of its proper divisors (268296362704).

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

220949945552 is a wasteful number, since it uses less digits than its factorization.

220949945552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972767386 (or 1972767380 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 220949945552 in words is "two hundred twenty billion, nine hundred forty-nine million, nine hundred forty-five thousand, five hundred fifty-two".