164007220023 has 12 divisors (see below), whose sum is σ = 237267754360. Its totient is φ = 109168099056.

The previous prime is 164007220019. The next prime is 164007220057. The reversal of 164007220023 is 320022700461.

164007220023 is a `hidden beast` number, since 16 + 400 + 7 + 220 + 0 + 23 = 666.

It is not a de Polignac number, because 164007220023 - 2² = 164007220019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164007220073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14164528 + ... + 14176101.

Almost surely, 2^164007220023 is an apocalyptic number.

164007220023 is a deficient number, since it is larger than the sum of its proper divisors (73260534337).

164007220023 is a wasteful number, since it uses less digits than its factorization.

164007220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28341278 (or 28341275 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 164007220023 its reverse (320022700461), we get a palindrome (484029920484).

The spelling of 164007220023 in words is "one hundred sixty-four billion, seven million, two hundred twenty thousand, twenty-three".