164346226320 has 40 divisors (see below), whose sum is σ = 509473302336. Its totient is φ = 43825660288.

The previous prime is 164346226313. The next prime is 164346226339. The reversal of 164346226320 is 23622643461.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342387732 + ... + 342388211.

Almost surely, 2^164346226320 is an apocalyptic number.

164346226320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164346226320 is an abundant number, since it is smaller than the sum of its proper divisors (345127076016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164346226320 is a wasteful number, since it uses less digits than its factorization.

164346226320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684775959 (or 684775953 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

Adding to 164346226320 its reverse (23622643461), we get a palindrome (187968869781).

The spelling of 164346226320 in words is "one hundred sixty-four billion, three hundred forty-six million, two hundred twenty-six thousand, three hundred twenty".