164662277795 has 16 divisors (see below), whose sum is σ = 200018760480. Its totient is φ = 130114493184.

The previous prime is 164662277789. The next prime is 164662277839. The reversal of 164662277795 is 597772266461.

It is a happy number.

It is a Cunningham number, because it is equal to 405786²-1.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164662277795 is a prime.

It is a super-2 number, since 2×164662277795² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1988357 + ... + 2069513.

It is an arithmetic number, because the mean of its divisors is an integer number (12501172530).

Almost surely, 2^164662277795 is an apocalyptic number.

164662277795 is a deficient number, since it is larger than the sum of its proper divisors (35356482685).

164662277795 is an equidigital number, since it uses as much as digits as its factorization.

164662277795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86134.

The product of its digits is 53343360, while the sum is 62.

The spelling of 164662277795 in words is "one hundred sixty-four billion, six hundred sixty-two million, two hundred seventy-seven thousand, seven hundred ninety-five".