164065902 has 128 divisors (see below), whose sum is σ = 449003520. Its totient is φ = 38586240.

The previous prime is 164065871. The next prime is 164065907. The reversal of 164065902 is 209560461.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164065907) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354123 + ... + 354585.

It is an arithmetic number, because the mean of its divisors is an integer number (3507840).

Almost surely, 2^164065902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164065902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224501760).

164065902 is an abundant number, since it is smaller than the sum of its proper divisors (284937618).

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

164065902 is a wasteful number, since it uses less digits than its factorization.

164065902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 164065902 is about 12808.8212572430. The cubic root of 164065902 is about 547.4436763644.

The spelling of 164065902 in words is "one hundred sixty-four million, sixty-five thousand, nine hundred two".