164205650 has 48 divisors (see below), whose sum is σ = 351138240. Its totient is φ = 55963200.

The previous prime is 164205649. The next prime is 164205653. The reversal of 164205650 is 56502461.

It is not an unprimeable number, because it can be changed into a prime (164205653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61340 + ... + 63960.

It is an arithmetic number, because the mean of its divisors is an integer number (7315380).

Almost surely, 2^164205650 is an apocalyptic number.

164205650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164205650 is an abundant number, since it is smaller than the sum of its proper divisors (186932590).

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

164205650 is a wasteful number, since it uses less digits than its factorization.

164205650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 164205650 is about 12814.2752428688. The cubic root of 164205650 is about 547.5990660516.

The spelling of 164205650 in words is "one hundred sixty-four million, two hundred five thousand, six hundred fifty".