164344445038 has 8 divisors (see below), whose sum is σ = 246797761032. Its totient is φ = 82078524696.

The previous prime is 164344445033. The next prime is 164344445039. The reversal of 164344445038 is 830544443461.

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

It is a super-2 number, since 2×164344445038² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164344445033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46846720 + ... + 46850227.

It is an arithmetic number, because the mean of its divisors is an integer number (30849720129).

Almost surely, 2^164344445038 is an apocalyptic number.

164344445038 is a deficient number, since it is larger than the sum of its proper divisors (82453315994).

164344445038 is an equidigital number, since it uses as much as digits as its factorization.

164344445038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93697826.

The product of its (nonzero) digits is 2211840, while the sum is 46.

Adding to 164344445038 its reverse (830544443461), we get a palindrome (994888888499).

The spelling of 164344445038 in words is "one hundred sixty-four billion, three hundred forty-four million, four hundred forty-five thousand, thirty-eight".