2166062521516 has 48 divisors (see below), whose sum is σ = 3962757528576. Its totient is φ = 1034953605504.

The previous prime is 2166062521451. The next prime is 2166062521517. The reversal of 2166062521516 is 6151252606612.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (2166062521517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22401025 + ... + 22497511.

It is an arithmetic number, because the mean of its divisors is an integer number (82557448512).

Almost surely, 2^{2166062521516} is an apocalyptic number.

It is an amenable number.

2166062521516 is a deficient number, since it is larger than the sum of its proper divisors (1796695007060).

2166062521516 is a wasteful number, since it uses less digits than its factorization.

2166062521516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99358 (or 99356 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 2166062521516 in words is "two trillion, one hundred sixty-six billion, sixty-two million, five hundred twenty-one thousand, five hundred sixteen".