220616561100 has 144 divisors (see below), whose sum is σ = 703405590272. Its totient is φ = 53042653440.

The previous prime is 220616561093. The next prime is 220616561111. The reversal of 220616561100 is 1165616022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 490072 + ... + 825471.

Almost surely, 2^220616561100 is an apocalyptic number.

220616561100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220616561100 is an abundant number, since it is smaller than the sum of its proper divisors (482789029172).

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

220616561100 is a wasteful number, since it uses less digits than its factorization.

220616561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315616 (or 1315609 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 220616561100 in words is "two hundred twenty billion, six hundred sixteen million, five hundred sixty-one thousand, one hundred".