2166099370700 has 36 divisors (see below), whose sum is σ = 4736316851112. Its totient is φ = 859825699200.

The previous prime is 2166099370679. The next prime is 2166099370709. The reversal of 2166099370700 is 70739906612.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (2166099370709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82662449 + ... + 82688648.

Almost surely, 2^{2166099370700} is an apocalyptic number.

2166099370700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2166099370700 is an abundant number, since it is smaller than the sum of its proper divisors (2570217480412).

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

2166099370700 is a wasteful number, since it uses less digits than its factorization.

2166099370700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165351242 (or 165351235 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 2166099370700 in words is "two trillion, one hundred sixty-six billion, ninety-nine million, three hundred seventy thousand, seven hundred".