956466566439 has 4 divisors (see below), whose sum is σ = 1275288755256. Its totient is φ = 637644377624.

The previous prime is 956466566423. The next prime is 956466566441. The reversal of 956466566439 is 934665664659.

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 956466566439 - 2⁴ = 956466566423 is a prime.

It is a super-2 number, since 2×956466566439² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956466561439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159411094404 + ... + 159411094409.

It is an arithmetic number, because the mean of its divisors is an integer number (318822188814).

Almost surely, 2^956466566439 is an apocalyptic number.

956466566439 is a deficient number, since it is larger than the sum of its proper divisors (318822188817).

956466566439 is a wasteful number, since it uses less digits than its factorization.

956466566439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318822188816.

The product of its digits is 755827200, while the sum is 69.

The spelling of 956466566439 in words is "nine hundred fifty-six billion, four hundred sixty-six million, five hundred sixty-six thousand, four hundred thirty-nine".