2116604662560 has 480 divisors, whose sum is σ = 7722330739200. Its totient is φ = 545404907520.

The previous prime is 2116604662531. The next prime is 2116604662583. The reversal of 2116604662560 is 652664066112.

2116604662560 is a `hidden beast` number, since 2 + 1 + 16 + 6 + 0 + 4 + 6 + 625 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 296897076 + ... + 296904204.

It is an arithmetic number, because the mean of its divisors is an integer number (16088189040).

Almost surely, 2^{2116604662560} is an apocalyptic number.

2116604662560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116604662560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3861165369600).

2116604662560 is an abundant number, since it is smaller than the sum of its proper divisors (5605726076640).

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

2116604662560 is a wasteful number, since it uses less digits than its factorization.

2116604662560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926 (or 7909 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 2116604662560 in words is "two trillion, one hundred sixteen billion, six hundred four million, six hundred sixty-two thousand, five hundred sixty".