164215700 has 36 divisors (see below), whose sum is σ = 388745952. Its totient is φ = 59714400.

The previous prime is 164215691. The next prime is 164215729. The reversal of 164215700 is 7512461.

It is a super-2 number, since 2×164215700² = 53933592252980000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164215700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73544 + ... + 75743.

Almost surely, 2^164215700 is an apocalyptic number.

164215700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164215700 is an abundant number, since it is smaller than the sum of its proper divisors (224530252).

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

164215700 is a wasteful number, since it uses less digits than its factorization.

164215700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149312 (or 149305 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 164215700 is about 12814.6673776575. The cubic root of 164215700 is about 547.6102375274.

The spelling of 164215700 in words is "one hundred sixty-four million, two hundred fifteen thousand, seven hundred".