166433460365 has 4 divisors (see below), whose sum is σ = 199720152444. Its totient is φ = 133146768288.

The previous prime is 166433460359. The next prime is 166433460373. The reversal of 166433460365 is 563064334661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563064334661 = 373 ⋅1509555857.

It can be written as a sum of positive squares in 2 ways, for example, as 31025651881 + 135407808484 = 176141^2 + 367978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166433460365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16643346032 + ... + 16643346041.

It is an arithmetic number, because the mean of its divisors is an integer number (49930038111).

Almost surely, 2^166433460365 is an apocalyptic number.

It is an amenable number.

166433460365 is a deficient number, since it is larger than the sum of its proper divisors (33286692079).

166433460365 is an equidigital number, since it uses as much as digits as its factorization.

166433460365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33286692078.

The product of its (nonzero) digits is 2799360, while the sum is 47.

The spelling of 166433460365 in words is "one hundred sixty-six billion, four hundred thirty-three million, four hundred sixty thousand, three hundred sixty-five".