164212556 has 6 divisors (see below), whose sum is σ = 287371980. Its totient is φ = 82106276.

The previous prime is 164212553. The next prime is 164212577. The reversal of 164212556 is 655212461.

It is not an unprimeable number, because it can be changed into a prime (164212553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20526566 + ... + 20526573.

It is an arithmetic number, because the mean of its divisors is an integer number (47895330).

Almost surely, 2^164212556 is an apocalyptic number.

It is an amenable number.

164212556 is a deficient number, since it is larger than the sum of its proper divisors (123159424).

164212556 is a wasteful number, since it uses less digits than its factorization.

164212556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41053143 (or 41053141 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 164212556 is about 12814.5447051388. The cubic root of 164212556 is about 547.6067427386.

The spelling of 164212556 in words is "one hundred sixty-four million, two hundred twelve thousand, five hundred fifty-six".