164256736 has 24 divisors (see below), whose sum is σ = 369578160. Its totient is φ = 70395648.

The previous prime is 164256733. The next prime is 164256739. The reversal of 164256736 is 637652461.

164256736 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164256733) and next prime (164256739).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164256733) 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, 366421 + ... + 366868.

It is an arithmetic number, because the mean of its divisors is an integer number (15399090).

Almost surely, 2^164256736 is an apocalyptic number.

164256736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164256736 is an abundant number, since it is smaller than the sum of its proper divisors (205321424).

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

164256736 is an equidigital number, since it uses as much as digits as its factorization.

164256736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733306 (or 733298 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 164256736 is about 12816.2684116712. The cubic root of 164256736 is about 547.6558479900.

The spelling of 164256736 in words is "one hundred sixty-four million, two hundred fifty-six thousand, seven hundred thirty-six".