164066390 has 8 divisors (see below), whose sum is σ = 295319520. Its totient is φ = 65626552.

The previous prime is 164066377. The next prime is 164066407. The reversal of 164066390 is 93660461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 164066390.

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, 8203310 + ... + 8203329.

It is an arithmetic number, because the mean of its divisors is an integer number (36914940).

Almost surely, 2^164066390 is an apocalyptic number.

164066390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164066390 is a deficient number, since it is larger than the sum of its proper divisors (131253130).

164066390 is a wasteful number, since it uses less digits than its factorization.

164066390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16406646.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 164066390 is about 12808.8403066008. The cubic root of 164066390 is about 547.4442191386. Note that the first 3 decimals are identical.

The spelling of 164066390 in words is "one hundred sixty-four million, sixty-six thousand, three hundred ninety".