164561080 has 32 divisors (see below), whose sum is σ = 383032800. Its totient is φ = 63554176.

The previous prime is 164561077. The next prime is 164561083. The reversal of 164561080 is 80165461.

It is an interprime number because it is at equal distance from previous prime (164561077) and next prime (164561083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164561083) 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, 69772 + ... + 72091.

It is an arithmetic number, because the mean of its divisors is an integer number (11969775).

Almost surely, 2^164561080 is an apocalyptic number.

164561080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164561080 is an abundant number, since it is smaller than the sum of its proper divisors (218471720).

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

164561080 is a wasteful number, since it uses less digits than its factorization.

164561080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141903 (or 141899 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 164561080 is about 12828.1362636979. The cubic root of 164561080 is about 547.9938816871.

The spelling of 164561080 in words is "one hundred sixty-four million, five hundred sixty-one thousand, eighty".