164490429979 has 2 divisors, whose sum is σ = 164490429980. Its totient is φ = 164490429978.

The previous prime is 164490429967. The next prime is 164490430103. The reversal of 164490429979 is 979924094461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164490429979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164490429979.

It is not a weakly prime, because it can be changed into another prime (164490429919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82245214989 + 82245214990.

It is an arithmetic number, because the mean of its divisors is an integer number (82245214990).

Almost surely, 2^164490429979 is an apocalyptic number.

164490429979 is a deficient number, since it is larger than the sum of its proper divisors (1).

164490429979 is an equidigital number, since it uses as much as digits as its factorization.

164490429979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 164490429979 in words is "one hundred sixty-four billion, four hundred ninety million, four hundred twenty-nine thousand, nine hundred seventy-nine".