164144620 has 24 divisors (see below), whose sum is σ = 349070400. Its totient is φ = 64826112.

The previous prime is 164144587. The next prime is 164144621. The reversal of 164144620 is 26441461.

164144620 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164144621) 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, 50365 + ... + 53524.

It is an arithmetic number, because the mean of its divisors is an integer number (14544600).

Almost surely, 2^164144620 is an apocalyptic number.

164144620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164144620 is an abundant number, since it is smaller than the sum of its proper divisors (184925780).

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

164144620 is a wasteful number, since it uses less digits than its factorization.

164144620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103977 (or 103975 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 164144620 is about 12811.8936929714. The cubic root of 164144620 is about 547.5312159457.

The spelling of 164144620 in words is "one hundred sixty-four million, one hundred forty-four thousand, six hundred twenty".