160561651 has 4 divisors (see below), whose sum is σ = 170006472. Its totient is φ = 151116832.

The previous prime is 160561637. The next prime is 160561663. The reversal of 160561651 is 156165061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 160561651 - 2¹⁵ = 160528883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160561631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4722385 + ... + 4722418.

It is an arithmetic number, because the mean of its divisors is an integer number (42501618).

Almost surely, 2^160561651 is an apocalyptic number.

160561651 is a deficient number, since it is larger than the sum of its proper divisors (9444821).

160561651 is an equidigital number, since it uses as much as digits as its factorization.

160561651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444820.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 160561651 is about 12671.2923965948. The cubic root of 160561651 is about 543.5180128806.

The spelling of 160561651 in words is "one hundred sixty million, five hundred sixty-one thousand, six hundred fifty-one".