164233939545 has 192 divisors, whose sum is σ = 327783456000. Its totient is φ = 75403560960.

The previous prime is 164233939531. The next prime is 164233939591. The reversal of 164233939545 is 545939332461.

164233939545 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 3 + 3 + 93 + 9 + 545 = 666.

It is not a de Polignac number, because 164233939545 - 2⁷ = 164233939417 is a prime.

Its product of digits (10497600) is a multiple of the sum of its prime factors (1080).

It is a junction number, because it is equal to n+sod(n) for n = 164233939491 and 164233939500.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 216953307 + ... + 216954063.

It is an arithmetic number, because the mean of its divisors is an integer number (1707205500).

Almost surely, 2^164233939545 is an apocalyptic number.

164233939545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164233939545 is a deficient number, since it is larger than the sum of its proper divisors (163549516455).

164233939545 is a wasteful number, since it uses less digits than its factorization.

164233939545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1077 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The spelling of 164233939545 in words is "one hundred sixty-four billion, two hundred thirty-three million, nine hundred thirty-nine thousand, five hundred forty-five".