959491665 has 24 divisors (see below), whose sum is σ = 1814312448. Its totient is φ = 465207840.

The previous prime is 959491627. The next prime is 959491691. The reversal of 959491665 is 566194959.

959491665 is a `hidden beast` number, since 95 + 9 + 491 + 6 + 65 = 666.

It is not a de Polignac number, because 959491665 - 2⁶ = 959491601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 968689 + ... + 969678.

It is an arithmetic number, because the mean of its divisors is an integer number (75596352).

Almost surely, 2^959491665 is an apocalyptic number.

It is an amenable number.

959491665 is a deficient number, since it is larger than the sum of its proper divisors (854820783).

959491665 is a wasteful number, since it uses less digits than its factorization.

959491665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938389 (or 1938386 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 54.

The square root of 959491665 is about 30975.6624626496. The cubic root of 959491665 is about 986.3106792797.

The spelling of 959491665 in words is "nine hundred fifty-nine million, four hundred ninety-one thousand, six hundred sixty-five".