959663181376 has 21 divisors (see below), whose sum is σ = 1904347177201. Its totient is φ = 479827672192.

The previous prime is 959663181371. The next prime is 959663181391. The reversal of 959663181376 is 673181366959.

The square root of 959663181376 is 979624.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 461475662400 + 498187518976 = 679320^2 + 705824^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (959663181371) 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 2 ways as a sum of consecutive naturals, for example, 7775766 + ... + 7898218.

Almost surely, 2^959663181376 is an apocalyptic number.

959663181376 is the 979624-th square number.

It is an amenable number.

959663181376 is a deficient number, since it is larger than the sum of its proper divisors (944683995825).

959663181376 is an frugal number, since it uses more digits than its factorization.

959663181376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244918 (or 122455 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 64.

Multiplying 959663181376 by its sum of digits (64), we get a square (61418443608064 = 7836992²).

959663181376 divided by its sum of digits (64) gives a square (14994737209 = 122453²).

The spelling of 959663181376 in words is "nine hundred fifty-nine billion, six hundred sixty-three million, one hundred eighty-one thousand, three hundred seventy-six".