2188658960220 has 96 divisors (see below), whose sum is σ = 6232656003840. Its totient is φ = 573700216320.

The previous prime is 2188658960203. The next prime is 2188658960237. The reversal of 2188658960220 is 220698568812.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2188658960203) and next prime (2188658960237).

It is a congruent number.

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, 58862235 + ... + 58899405.

It is an arithmetic number, because the mean of its divisors is an integer number (64923500040).

Almost surely, 2^{2188658960220} is an apocalyptic number.

2188658960220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2188658960220 is an abundant number, since it is smaller than the sum of its proper divisors (4043997043620).

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

2188658960220 is a wasteful number, since it uses less digits than its factorization.

2188658960220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53875 (or 53873 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 2188658960220 in words is "two trillion, one hundred eighty-eight billion, six hundred fifty-eight million, nine hundred sixty thousand, two hundred twenty".