164090922603920 has 80 divisors (see below), whose sum is σ = 410861245332720. Its totient is φ = 60587001741312.

The previous prime is 164090922603901. The next prime is 164090922603961. The reversal of 164090922603920 is 29306229090461.

It can be written as a sum of positive squares in 8 ways, for example, as 17642587294864 + 146448335309056 = 4200308^2 + 12101584^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179982176 + ... + 180891584.

It is an arithmetic number, because the mean of its divisors is an integer number (5135765566659).

Almost surely, 2^{164090922603920} is an apocalyptic number.

164090922603920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164090922603920 is an abundant number, since it is smaller than the sum of its proper divisors (246770322728800).

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

164090922603920 is a wasteful number, since it uses less digits than its factorization.

164090922603920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082932 (or 1082926 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 164090922603920 in words is "one hundred sixty-four trillion, ninety billion, nine hundred twenty-two million, six hundred three thousand, nine hundred twenty".