164730924889 has 2 divisors, whose sum is σ = 164730924890. Its totient is φ = 164730924888.

The previous prime is 164730924881. The next prime is 164730924929. The reversal of 164730924889 is 988429037461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162340497225 + 2390427664 = 402915^2 + 48892^2 .

It is a cyclic number.

It is not a de Polignac number, because 164730924889 - 2³ = 164730924881 is a prime.

It is a super-2 number, since 2×164730924889² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164730924881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82365462444 + 82365462445.

It is an arithmetic number, because the mean of its divisors is an integer number (82365462445).

Almost surely, 2^164730924889 is an apocalyptic number.

It is an amenable number.

164730924889 is a deficient number, since it is larger than the sum of its proper divisors (1).

164730924889 is an equidigital number, since it uses as much as digits as its factorization.

164730924889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 164730924889 in words is "one hundred sixty-four billion, seven hundred thirty million, nine hundred twenty-four thousand, eight hundred eighty-nine".