2165495264120 has 64 divisors (see below), whose sum is σ = 5169481884000. Its totient is φ = 813584773120.

The previous prime is 2165495264083. The next prime is 2165495264129. The reversal of 2165495264120 is 214625945612.

It is a super-2 number, since 2×2165495264120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165495264129) 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, 2909045 + ... + 3576804.

Almost surely, 2^{2165495264120} is an apocalyptic number.

2165495264120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165495264120 is an abundant number, since it is smaller than the sum of its proper divisors (3003986619880).

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

2165495264120 is a wasteful number, since it uses less digits than its factorization.

2165495264120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486368 (or 6486364 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 2165495264120 in words is "two trillion, one hundred sixty-five billion, four hundred ninety-five million, two hundred sixty-four thousand, one hundred twenty".