164708297722 has 4 divisors (see below), whose sum is σ = 247062446586. Its totient is φ = 82354148860.

The previous prime is 164708297711. The next prime is 164708297729. The reversal of 164708297722 is 227792807461.

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., 104904084321 + 59804213401 = 323889^2 + 244549^2 .

It is not an unprimeable number, because it can be changed into a prime (164708297729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41177074429 + ... + 41177074432.

Almost surely, 2^164708297722 is an apocalyptic number.

164708297722 is a deficient number, since it is larger than the sum of its proper divisors (82354148864).

164708297722 is an equidigital number, since it uses as much as digits as its factorization.

164708297722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82354148863.

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 164708297722 in words is "one hundred sixty-four billion, seven hundred eight million, two hundred ninety-seven thousand, seven hundred twenty-two".