164368619776 has 27 divisors (see below), whose sum is σ = 328108123371. Its totient is φ = 82181066496.

The previous prime is 164368619761. The next prime is 164368619783. The reversal of 164368619776 is 677916863461.

The square root of 164368619776 is 405424.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6474115 + ... + 6499453.

Almost surely, 2^164368619776 is an apocalyptic number.

164368619776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

164368619776 is the 405424-th square number.

It is an amenable number.

164368619776 is a deficient number, since it is larger than the sum of its proper divisors (163739503595).

164368619776 is an frugal number, since it uses more digits than its factorization.

164368619776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50694 (or 25341 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 64.

Multiplying 164368619776 by its sum of digits (64), we get a square (10519591665664 = 3243392²).

164368619776 divided by its sum of digits (64) gives a square (2568259684 = 50678²).

The spelling of 164368619776 in words is "one hundred sixty-four billion, three hundred sixty-eight million, six hundred nineteen thousand, seven hundred seventy-six".