2166707667590 has 32 divisors (see below), whose sum is σ = 3936701546784. Its totient is φ = 858544303360.

The previous prime is 2166707667583. The next prime is 2166707667601. The reversal of 2166707667590 is 957667076612.

It is a congruent number.

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, 39409520 + ... + 39464460.

It is an arithmetic number, because the mean of its divisors is an integer number (123021923337).

Almost surely, 2^{2166707667590} is an apocalyptic number.

2166707667590 is a deficient number, since it is larger than the sum of its proper divisors (1769993879194).

2166707667590 is a wasteful number, since it uses less digits than its factorization.

2166707667590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91912.

The product of its (nonzero) digits is 40007520, while the sum is 62.

The spelling of 2166707667590 in words is "two trillion, one hundred sixty-six billion, seven hundred seven million, six hundred sixty-seven thousand, five hundred ninety".