161484774162433 has 2 divisors, whose sum is σ = 161484774162434. Its totient is φ = 161484774162432.

The previous prime is 161484774162427. The next prime is 161484774162487. The reversal of 161484774162433 is 334261477484161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158552621365824 + 2932152796609 = 12591768^2 + 1712353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161484774162433 is a prime.

It is not a weakly prime, because it can be changed into another prime (161484774132433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80742387081216 + 80742387081217.

It is an arithmetic number, because the mean of its divisors is an integer number (80742387081217).

Almost surely, 2^{161484774162433} is an apocalyptic number.

It is an amenable number.

161484774162433 is a deficient number, since it is larger than the sum of its proper divisors (1).

161484774162433 is an equidigital number, since it uses as much as digits as its factorization.

161484774162433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65028096, while the sum is 61.

The spelling of 161484774162433 in words is "one hundred sixty-one trillion, four hundred eighty-four billion, seven hundred seventy-four million, one hundred sixty-two thousand, four hundred thirty-three".