164250723922 has 4 divisors (see below), whose sum is σ = 246376085886. Its totient is φ = 82125361960.

The previous prime is 164250723907. The next prime is 164250723961. The reversal of 164250723922 is 229327052461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128687930361 + 35562793561 = 358731^2 + 188581^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41062680979 + ... + 41062680982.

Almost surely, 2^164250723922 is an apocalyptic number.

164250723922 is a deficient number, since it is larger than the sum of its proper divisors (82125361964).

164250723922 is an equidigital number, since it uses as much as digits as its factorization.

164250723922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82125361963.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 164250723922 in words is "one hundred sixty-four billion, two hundred fifty million, seven hundred twenty-three thousand, nine hundred twenty-two".