164514970639 has 2 divisors, whose sum is σ = 164514970640. Its totient is φ = 164514970638.

The previous prime is 164514970583. The next prime is 164514970643. The reversal of 164514970639 is 936079415461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164514970639 - 2¹¹ = 164514968591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164514970639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164514970679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82257485319 + 82257485320.

It is an arithmetic number, because the mean of its divisors is an integer number (82257485320).

Almost surely, 2^164514970639 is an apocalyptic number.

164514970639 is a deficient number, since it is larger than the sum of its proper divisors (1).

164514970639 is an equidigital number, since it uses as much as digits as its factorization.

164514970639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 164514970639 in words is "one hundred sixty-four billion, five hundred fourteen million, nine hundred seventy thousand, six hundred thirty-nine".