164662121594 has 32 divisors (see below), whose sum is σ = 260247651840. Its totient is φ = 77983627392.

The previous prime is 164662121593. The next prime is 164662121627. The reversal of 164662121594 is 495121266461.

It is a super-2 number, since 2×164662121594² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164662121593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9583199 + ... + 9600365.

It is an arithmetic number, because the mean of its divisors is an integer number (8132739120).

Almost surely, 2^164662121594 is an apocalyptic number.

164662121594 is a deficient number, since it is larger than the sum of its proper divisors (95585530246).

164662121594 is a wasteful number, since it uses less digits than its factorization.

164662121594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19214.

The product of its digits is 622080, while the sum is 47.

The spelling of 164662121594 in words is "one hundred sixty-four billion, six hundred sixty-two million, one hundred twenty-one thousand, five hundred ninety-four".