164345622253402 has 8 divisors (see below), whose sum is σ = 251169724576116. Its totient is φ = 80622380728032.

The previous prime is 164345622253363. The next prime is 164345622253451. The reversal of 164345622253402 is 204352226543461.

It can be written as a sum of positive squares in 2 ways, for example, as 163878888707361 + 466733546041 = 12801519^2 + 683179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775215199203 + ... + 775215199414.

Almost surely, 2^{164345622253402} is an apocalyptic number.

164345622253402 is a deficient number, since it is larger than the sum of its proper divisors (86824102322714).

164345622253402 is a wasteful number, since it uses less digits than its factorization.

164345622253402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550430398672.

The product of its (nonzero) digits is 8294400, while the sum is 49.

Adding to 164345622253402 its reverse (204352226543461), we get a palindrome (368697848796863).

The spelling of 164345622253402 in words is "one hundred sixty-four trillion, three hundred forty-five billion, six hundred twenty-two million, two hundred fifty-three thousand, four hundred two".