2165653136373 has 8 divisors (see below), whose sum is σ = 2887655342208. Its totient is φ = 1443709844064.

The previous prime is 2165653136351. The next prime is 2165653136419. The reversal of 2165653136373 is 3736313565612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2165653136373 - 2²² = 2165648942069 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165653536373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14642536 + ... + 14789697.

It is an arithmetic number, because the mean of its divisors is an integer number (360956917776).

Almost surely, 2^{2165653136373} is an apocalyptic number.

It is an amenable number.

2165653136373 is a deficient number, since it is larger than the sum of its proper divisors (722002205835).

2165653136373 is a wasteful number, since it uses less digits than its factorization.

2165653136373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29456763.

The product of its digits is 6123600, while the sum is 51.

The spelling of 2165653136373 in words is "two trillion, one hundred sixty-five billion, six hundred fifty-three million, one hundred thirty-six thousand, three hundred seventy-three".