164562413641 has 2 divisors, whose sum is σ = 164562413642. Its totient is φ = 164562413640.

The previous prime is 164562413629. The next prime is 164562413651. The reversal of 164562413641 is 146314265461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85275680400 + 79286733241 = 292020^2 + 281579^2 .

It is a cyclic number.

It is not a de Polignac number, because 164562413641 - 2¹⁹ = 164561889353 is a prime.

It is not a weakly prime, because it can be changed into another prime (164562413611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82281206820 + 82281206821.

It is an arithmetic number, because the mean of its divisors is an integer number (82281206821).

Almost surely, 2^164562413641 is an apocalyptic number.

It is an amenable number.

164562413641 is a deficient number, since it is larger than the sum of its proper divisors (1).

164562413641 is an equidigital number, since it uses as much as digits as its factorization.

164562413641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The spelling of 164562413641 in words is "one hundred sixty-four billion, five hundred sixty-two million, four hundred thirteen thousand, six hundred forty-one".