2199557136 has 160 divisors (see below), whose sum is σ = 6847561728. Its totient is φ = 595100160.

The previous prime is 2199557099. The next prime is 2199557147. The reversal of 2199557136 is 6317559912.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487306 + ... + 491798.

Almost surely, 2^2199557136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2199557136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3423780864).

2199557136 is an abundant number, since it is smaller than the sum of its proper divisors (4648004592).

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

2199557136 is a wasteful number, since it uses less digits than its factorization.

2199557136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589 (or 4583 counting only the distinct ones).

The product of its digits is 510300, while the sum is 48.

The square root of 2199557136 is about 46899.4364145242. The cubic root of 2199557136 is about 1300.5041705205.

The spelling of 2199557136 in words is "two billion, one hundred ninety-nine million, five hundred fifty-seven thousand, one hundred thirty-six".