2165061969300 has 72 divisors (see below), whose sum is σ = 6536604505536. Its totient is φ = 552247688960.

The previous prime is 2165061969281. The next prime is 2165061969307. The reversal of 2165061969300 is 39691605612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2165061969300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165061969307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156881649 + ... + 156895448.

It is an arithmetic number, because the mean of its divisors is an integer number (90786173688).

Almost surely, 2^{2165061969300} is an apocalyptic number.

2165061969300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165061969300 is an abundant number, since it is smaller than the sum of its proper divisors (4371542536236).

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

2165061969300 is a wasteful number, since it uses less digits than its factorization.

2165061969300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313777137 (or 313777130 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 2165061969300 in words is "two trillion, one hundred sixty-five billion, sixty-one million, nine hundred sixty-nine thousand, three hundred".