164727650 has 12 divisors (see below), whose sum is σ = 306393522. Its totient is φ = 65891040.

The previous prime is 164727593. The next prime is 164727713. The reversal of 164727650 is 56727461.

It can be written as a sum of positive squares in 3 ways, for example, as 129527161 + 35200489 = 11381^2 + 5933^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1647227 + ... + 1647326.

Almost surely, 2^164727650 is an apocalyptic number.

164727650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164727650 is a deficient number, since it is larger than the sum of its proper divisors (141665872).

164727650 is a wasteful number, since it uses less digits than its factorization.

164727650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294565 (or 3294560 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 164727650 is about 12834.6269910738. The cubic root of 164727650 is about 548.1787138890.

The spelling of 164727650 in words is "one hundred sixty-four million, seven hundred twenty-seven thousand, six hundred fifty".