164840774264 has 32 divisors (see below), whose sum is σ = 315075277440. Its totient is φ = 80822352000.

The previous prime is 164840774243. The next prime is 164840774281. The reversal of 164840774264 is 462477048461.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703769 + ... + 908279.

It is an arithmetic number, because the mean of its divisors is an integer number (9846102420).

Almost surely, 2^164840774264 is an apocalyptic number.

It is an amenable number.

164840774264 is a deficient number, since it is larger than the sum of its proper divisors (150234503176).

164840774264 is a wasteful number, since it uses less digits than its factorization.

164840774264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206471 (or 206467 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 53.

The spelling of 164840774264 in words is "one hundred sixty-four billion, eight hundred forty million, seven hundred seventy-four thousand, two hundred sixty-four".