1601846361 has 10 divisors (see below), whose sum is σ = 2392881722. Its totient is φ = 1067897520.

The previous prime is 1601846327. The next prime is 1601846419. The reversal of 1601846361 is 1636481061.

1601846361 is a `hidden beast` number, since 1 + 6 + 0 + 18 + 4 + 636 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1456185600 + 145660761 = 38160^2 + 12069^2 .

It is not a de Polignac number, because 1601846361 - 2²⁷ = 1467628633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601846161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9887860 + ... + 9888021.

Almost surely, 2^1601846361 is an apocalyptic number.

It is an amenable number.

1601846361 is a deficient number, since it is larger than the sum of its proper divisors (791035361).

1601846361 is an equidigital number, since it uses as much as digits as its factorization.

1601846361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19775893 (or 19775884 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1601846361 is about 40023.0728580403. The cubic root of 1601846361 is about 1170.0568216980.

The spelling of 1601846361 in words is "one billion, six hundred one million, eight hundred forty-six thousand, three hundred sixty-one".