164177020 has 48 divisors (see below), whose sum is σ = 394752960. Its totient is φ = 56185344.

The previous prime is 164177017. The next prime is 164177021. The reversal of 164177020 is 20771461.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 164177020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164177021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149112 + ... + 150208.

It is an arithmetic number, because the mean of its divisors is an integer number (8224020).

Almost surely, 2^164177020 is an apocalyptic number.

164177020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164177020 is an abundant number, since it is smaller than the sum of its proper divisors (230575940).

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

164177020 is a wasteful number, since it uses less digits than its factorization.

164177020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 164177020 is about 12813.1580806607. The cubic root of 164177020 is about 547.5672387413.

The spelling of 164177020 in words is "one hundred sixty-four million, one hundred seventy-seven thousand, twenty".