2220000161604 has 48 divisors (see below), whose sum is σ = 5193402418176. Its totient is φ = 738085824000.

The previous prime is 2220000161563. The next prime is 2220000161629. The reversal of 2220000161604 is 4061610000222.

It is a super-2 number, since 2×2220000161604² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97609674 + ... + 97632414.

It is an arithmetic number, because the mean of its divisors is an integer number (108195883712).

Almost surely, 2^{2220000161604} is an apocalyptic number.

It is an amenable number.

2220000161604 is an abundant number, since it is smaller than the sum of its proper divisors (2973402256572).

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

2220000161604 is a wasteful number, since it uses less digits than its factorization.

2220000161604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43436 (or 43434 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2220000161604 its reverse (4061610000222), we get a palindrome (6281610161826).

The spelling of 2220000161604 in words is "two trillion, two hundred twenty billion, one hundred sixty-one thousand, six hundred four".