164343580090 has 32 divisors (see below), whose sum is σ = 311759280000. Its totient is φ = 62203278528.

The previous prime is 164343580069. The next prime is 164343580091. The reversal of 164343580090 is 90085343461.

It is not an unprimeable number, because it can be changed into a prime (164343580091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356065 + ... + 674884.

It is an arithmetic number, because the mean of its divisors is an integer number (9742477500).

Almost surely, 2^164343580090 is an apocalyptic number.

164343580090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164343580090 is a deficient number, since it is larger than the sum of its proper divisors (147415699910).

164343580090 is a wasteful number, since it uses less digits than its factorization.

164343580090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031814.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 164343580090 in words is "one hundred sixty-four billion, three hundred forty-three million, five hundred eighty thousand, ninety".