164065458340 has 72 divisors (see below), whose sum is σ = 413717213952. Its totient is φ = 54436455360.

The previous prime is 164065458329. The next prime is 164065458373. The reversal of 164065458340 is 43854560461.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2669842 + ... + 2730601.

It is an arithmetic number, because the mean of its divisors is an integer number (5746072416).

Almost surely, 2^164065458340 is an apocalyptic number.

164065458340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164065458340 is an abundant number, since it is smaller than the sum of its proper divisors (249651755612).

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

164065458340 is a wasteful number, since it uses less digits than its factorization.

164065458340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400497 (or 5400488 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 164065458340 in words is "one hundred sixty-four billion, sixty-five million, four hundred fifty-eight thousand, three hundred forty".