164799699765 has 16 divisors (see below), whose sum is σ = 263686010688. Its totient is φ = 87891009536.

The previous prime is 164799699749. The next prime is 164799699767. The reversal of 164799699765 is 567996997461.

It is a cyclic number.

It is not a de Polignac number, because 164799699765 - 2⁴ = 164799699749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164799699767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636469 + ... + 857141.

It is an arithmetic number, because the mean of its divisors is an integer number (16480375668).

Almost surely, 2^164799699765 is an apocalyptic number.

164799699765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164799699765 is a deficient number, since it is larger than the sum of its proper divisors (98886310923).

164799699765 is a wasteful number, since it uses less digits than its factorization.

164799699765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270468.

The product of its digits is 1388832480, while the sum is 78.

The spelling of 164799699765 in words is "one hundred sixty-four billion, seven hundred ninety-nine million, six hundred ninety-nine thousand, seven hundred sixty-five".