164066620 has 12 divisors (see below), whose sum is σ = 344539944. Its totient is φ = 65626640.

The previous prime is 164066603. The next prime is 164066671. The reversal of 164066620 is 26660461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101646 + ... + 4101685.

It is an arithmetic number, because the mean of its divisors is an integer number (28711662).

Almost surely, 2^164066620 is an apocalyptic number.

164066620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164066620 is an abundant number, since it is smaller than the sum of its proper divisors (180473324).

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

164066620 is a wasteful number, since it uses less digits than its factorization.

164066620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203340 (or 8203338 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164066620 is about 12808.8492847718. The cubic root of 164066620 is about 547.4444749540. Note that the first 4 decimals are identical.

The spelling of 164066620 in words is "one hundred sixty-four million, sixty-six thousand, six hundred twenty".