9656145544 has 16 divisors (see below), whose sum is σ = 18729593100. Its totient is φ = 4661587392.

The previous prime is 9656145509. The next prime is 9656145563. The reversal of 9656145544 is 4455416569.

It can be written as a sum of positive squares in 2 ways, for example, as 9552716644 + 103428900 = 97738^2 + 10170^2 .

It is a super-2 number, since 2×9656145544² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20810427 + ... + 20810890.

Almost surely, 2^9656145544 is an apocalyptic number.

It is an amenable number.

9656145544 is a deficient number, since it is larger than the sum of its proper divisors (9073447556).

9656145544 is a wasteful number, since it uses less digits than its factorization.

9656145544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41621352 (or 41621348 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 49.

The square root of 9656145544 is about 98265.6885387774. The cubic root of 9656145544 is about 2129.4523887782.

The spelling of 9656145544 in words is "nine billion, six hundred fifty-six million, one hundred forty-five thousand, five hundred forty-four".