2165360002651 has 16 divisors (see below), whose sum is σ = 2416065528960. Its totient is φ = 1928594517120.

The previous prime is 2165360002601. The next prime is 2165360002711. The reversal of 2165360002651 is 1562000635612.

It is a cyclic number.

It is not a de Polignac number, because 2165360002651 - 2²⁷ = 2165225784923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2165360002651.

It is not an unprimeable number, because it can be changed into a prime (2165360002601) 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, 3402685 + ... + 3988606.

It is an arithmetic number, because the mean of its divisors is an integer number (151004095560).

Almost surely, 2^{2165360002651} is an apocalyptic number.

2165360002651 is a deficient number, since it is larger than the sum of its proper divisors (250705526309).

2165360002651 is a wasteful number, since it uses less digits than its factorization.

2165360002651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392234.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 2165360002651 in words is "two trillion, one hundred sixty-five billion, three hundred sixty million, two thousand, six hundred fifty-one".