2165423355610 has 32 divisors (see below), whose sum is σ = 4033053540864. Its totient is φ = 836237304000.

The previous prime is 2165423355539. The next prime is 2165423355679. The reversal of 2165423355610 is 165533245612.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 8165496 + ... + 8426515.

It is an arithmetic number, because the mean of its divisors is an integer number (126032923152).

Almost surely, 2^{2165423355610} is an apocalyptic number.

2165423355610 is a deficient number, since it is larger than the sum of its proper divisors (1867630185254).

2165423355610 is a wasteful number, since it uses less digits than its factorization.

2165423355610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16592470.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 2165423355610 in words is "two trillion, one hundred sixty-five billion, four hundred twenty-three million, three hundred fifty-five thousand, six hundred ten".