164730020 has 48 divisors (see below), whose sum is σ = 425768448. Its totient is φ = 52133760.

The previous prime is 164729987. The next prime is 164730029. The reversal of 164730020 is 20037461.

It is not an unprimeable number, because it can be changed into a prime (164730029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43436 + ... + 47075.

It is an arithmetic number, because the mean of its divisors is an integer number (8870176).

Almost surely, 2^164730020 is an apocalyptic number.

164730020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164730020 is an abundant number, since it is smaller than the sum of its proper divisors (261038428).

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

164730020 is a wasteful number, since it uses less digits than its factorization.

164730020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90540 (or 90538 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 164730020 is about 12834.7193190969. The cubic root of 164730020 is about 548.1813428290.

Adding to 164730020 its reverse (20037461), we get a palindrome (184767481).

The spelling of 164730020 in words is "one hundred sixty-four million, seven hundred thirty thousand, twenty".