164690042280 has 32 divisors (see below), whose sum is σ = 494070127200. Its totient is φ = 43917344576.

The previous prime is 164690042261. The next prime is 164690042281. The reversal of 164690042280 is 82240096461.

It is not an unprimeable number, because it can be changed into a prime (164690042281) by changing a digit.

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, 686208390 + ... + 686208629.

It is an arithmetic number, because the mean of its divisors is an integer number (15439691475).

Almost surely, 2^164690042280 is an apocalyptic number.

164690042280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164690042280 is an abundant number, since it is smaller than the sum of its proper divisors (329380084920).

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

164690042280 is a wasteful number, since it uses less digits than its factorization.

164690042280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372417033 (or 1372417029 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 164690042280 in words is "one hundred sixty-four billion, six hundred ninety million, forty-two thousand, two hundred eighty".