164949856 has 24 divisors (see below), whose sum is σ = 330072624. Its totient is φ = 81121920.

The previous prime is 164949839. The next prime is 164949857. The reversal of 164949856 is 658949461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164949857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40300 + ... + 44203.

It is an arithmetic number, because the mean of its divisors is an integer number (13753026).

Almost surely, 2^164949856 is an apocalyptic number.

164949856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164949856 is an abundant number, since it is smaller than the sum of its proper divisors (165122768).

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

164949856 is an equidigital number, since it uses as much as digits as its factorization.

164949856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84574 (or 84566 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 164949856 is about 12843.2805777963. The cubic root of 164949856 is about 548.4250879695.

The spelling of 164949856 in words is "one hundred sixty-four million, nine hundred forty-nine thousand, eight hundred fifty-six".