160776481 has 4 divisors (see below), whose sum is σ = 160805764. Its totient is φ = 160747200.

The previous prime is 160776467. The next prime is 160776491. The reversal of 160776481 is 184677061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184677061 = 461 ⋅400601.

It can be written as a sum of positive squares in 2 ways, for example, as 44675856 + 116100625 = 6684^2 + 10775^2 .

It is a 3-Lehmer number, since φ(160776481) divides (160776481-1)³.

It is a cyclic number.

It is not a de Polignac number, because 160776481 - 2⁵ = 160776449 is a prime.

It is a super-2 number, since 2×160776481² = 51698153685486722, which contains 22 as substring.

It is a deceptive number, since it divides R_160776480.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160776491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3660 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (40201441).

Almost surely, 2^160776481 is an apocalyptic number.

160776481 is the 7321-st octagonal number.

It is an amenable number.

160776481 is a deficient number, since it is larger than the sum of its proper divisors (29283).

160776481 is an equidigital number, since it uses as much as digits as its factorization.

160776481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29282.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 160776481 is about 12679.7665987983. The cubic root of 160776481 is about 543.7603122015.

The spelling of 160776481 in words is "one hundred sixty million, seven hundred seventy-six thousand, four hundred eighty-one".