164657470 has 8 divisors (see below), whose sum is σ = 296383464. Its totient is φ = 65862984.

The previous prime is 164657459. The next prime is 164657509. The reversal of 164657470 is 74756461.

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

It is a super-2 number, since 2×164657470² = 54224164853601800, which contains 22 as substring.

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, 8232864 + ... + 8232883.

It is an arithmetic number, because the mean of its divisors is an integer number (37047933).

Almost surely, 2^164657470 is an apocalyptic number.

164657470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164657470 is a deficient number, since it is larger than the sum of its proper divisors (131725994).

164657470 is a wasteful number, since it uses less digits than its factorization.

164657470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16465754.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 164657470 is about 12831.8926897009. The cubic root of 164657470 is about 548.1008547746.

The spelling of 164657470 in words is "one hundred sixty-four million, six hundred fifty-seven thousand, four hundred seventy".