9161167544 has 32 divisors (see below), whose sum is σ = 17591067120. Its totient is φ = 4470391296.

The previous prime is 9161167537. The next prime is 9161167549. The reversal of 9161167544 is 4457611619.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9161167495 and 9161167504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161167549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435902 + ... + 456434.

Almost surely, 2^9161167544 is an apocalyptic number.

It is an amenable number.

9161167544 is a deficient number, since it is larger than the sum of its proper divisors (8429899576).

9161167544 is a wasteful number, since it uses less digits than its factorization.

9161167544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21879 (or 21875 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 9161167544 is about 95713.9882357851. The cubic root of 9161167544 is about 2092.4268067144.

The spelling of 9161167544 in words is "nine billion, one hundred sixty-one million, one hundred sixty-seven thousand, five hundred forty-four".