160522661 has 4 divisors (see below), whose sum is σ = 172870572. Its totient is φ = 148174752.

The previous prime is 160522651. The next prime is 160522673. The reversal of 160522661 is 166225061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 166225061 = 61 ⋅2725001.

It can be written as a sum of positive squares in 2 ways, for example, as 62710561 + 97812100 = 7919^2 + 9890^2 .

It is a cyclic number.

It is not a de Polignac number, because 160522661 - 2²⁶ = 93413797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160522631) 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, 6173936 + ... + 6173961.

It is an arithmetic number, because the mean of its divisors is an integer number (43217643).

Almost surely, 2^160522661 is an apocalyptic number.

It is an amenable number.

160522661 is a deficient number, since it is larger than the sum of its proper divisors (12347911).

160522661 is a wasteful number, since it uses less digits than its factorization.

160522661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12347910.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 160522661 is about 12669.7537860844. The cubic root of 160522661 is about 543.4740142404.

The spelling of 160522661 in words is "one hundred sixty million, five hundred twenty-two thousand, six hundred sixty-one".