164450162622461 has 2 divisors, whose sum is σ = 164450162622462. Its totient is φ = 164450162622460.

The previous prime is 164450162622439. The next prime is 164450162622491. The reversal of 164450162622461 is 164226261054461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157891538940100 + 6558623682361 = 12565490^2 + 2560981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164450162622461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164450162622491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82225081311230 + 82225081311231.

It is an arithmetic number, because the mean of its divisors is an integer number (82225081311231).

Almost surely, 2^{164450162622461} is an apocalyptic number.

It is an amenable number.

164450162622461 is a deficient number, since it is larger than the sum of its proper divisors (1).

164450162622461 is an equidigital number, since it uses as much as digits as its factorization.

164450162622461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 164450162622461 in words is "one hundred sixty-four trillion, four hundred fifty billion, one hundred sixty-two million, six hundred twenty-two thousand, four hundred sixty-one".