662160557 has 6 divisors (see below), whose sum is σ = 703402698. Its totient is φ = 623209664.

The previous prime is 662160539. The next prime is 662160563. The reversal of 662160557 is 755061266.

It can be written as a sum of positive squares in 3 ways, for example, as 460917961 + 201242596 = 21469^2 + 14186^2 .

It is not a de Polignac number, because 662160557 - 2¹² = 662156461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 662160557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662160157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145318 + ... + 1145895.

It is an arithmetic number, because the mean of its divisors is an integer number (117233783).

Almost surely, 2^662160557 is an apocalyptic number.

It is an amenable number.

662160557 is a deficient number, since it is larger than the sum of its proper divisors (41242141).

662160557 is a wasteful number, since it uses less digits than its factorization.

662160557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291247 (or 2291230 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 662160557 is about 25732.4805838846. The cubic root of 662160557 is about 871.6077888023.

The spelling of 662160557 in words is "six hundred sixty-two million, one hundred sixty thousand, five hundred fifty-seven".