9963161408 has 14 divisors (see below), whose sum is σ = 19770648546. Its totient is φ = 4981580672.

The previous prime is 9963161401. The next prime is 9963161477. The reversal of 9963161408 is 8041613699.

It can be written as a sum of positive squares in only one way, i.e., 7784885824 + 2178275584 = 88232^2 + 46672^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963161401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77837135 + ... + 77837262.

Almost surely, 2^9963161408 is an apocalyptic number.

It is an amenable number.

9963161408 is a deficient number, since it is larger than the sum of its proper divisors (9807487138).

9963161408 is a wasteful number, since it uses less digits than its factorization.

9963161408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155674409 (or 155674399 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 9963161408 is about 99815.6370915900. The cubic root of 9963161408 is about 2151.7858900777.

The spelling of 9963161408 in words is "nine billion, nine hundred sixty-three million, one hundred sixty-one thousand, four hundred eight".