2164653807 has 8 divisors (see below), whose sum is σ = 2887208880. Its totient is φ = 1442600640.

The previous prime is 2164653797. The next prime is 2164653859. The reversal of 2164653807 is 7083564612.

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

It is not a de Polignac number, because 2164653807 - 2⁸ = 2164653551 is a prime.

It is a super-2 number, since 2×2164653807² = 9371452208319186498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) 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 (2164653307) 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, 115294 + ... + 132747.

It is an arithmetic number, because the mean of its divisors is an integer number (360901110).

Almost surely, 2^2164653807 is an apocalyptic number.

2164653807 is a deficient number, since it is larger than the sum of its proper divisors (722555073).

2164653807 is a wasteful number, since it uses less digits than its factorization.

2164653807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250953.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2164653807 is about 46525.8402073514. The cubic root of 2164653807 is about 1293.5885113471.

The spelling of 2164653807 in words is "two billion, one hundred sixty-four million, six hundred fifty-three thousand, eight hundred seven".