662160561 has 8 divisors (see below), whose sum is σ = 883120224. Its totient is φ = 441320640.

The previous prime is 662160539. The next prime is 662160563. The reversal of 662160561 is 165061266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 662160561 - 2¹⁴ = 662144177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (662160563) 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 7 ways as a sum of consecutive naturals, for example, 16120 + ... + 39801.

It is an arithmetic number, because the mean of its divisors is an integer number (110390028).

Almost surely, 2^662160561 is an apocalyptic number.

It is an amenable number.

662160561 is a deficient number, since it is larger than the sum of its proper divisors (220959663).

662160561 is a wasteful number, since it uses less digits than its factorization.

662160561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59871.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 662160561 is about 25732.4806616074. The cubic root of 662160561 is about 871.6077905574.

The spelling of 662160561 in words is "six hundred sixty-two million, one hundred sixty thousand, five hundred sixty-one".