164081050499 has 2 divisors, whose sum is σ = 164081050500. Its totient is φ = 164081050498.

The previous prime is 164081050447. The next prime is 164081050571. The reversal of 164081050499 is 994050180461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164081050499 is a prime.

It is a super-2 number, since 2×164081050499² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164081050439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82040525249 + 82040525250.

It is an arithmetic number, because the mean of its divisors is an integer number (82040525250).

Almost surely, 2^164081050499 is an apocalyptic number.

164081050499 is a deficient number, since it is larger than the sum of its proper divisors (1).

164081050499 is an equidigital number, since it uses as much as digits as its factorization.

164081050499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 164081050499 in words is "one hundred sixty-four billion, eighty-one million, fifty thousand, four hundred ninety-nine".