9161720354 has 16 divisors (see below), whose sum is σ = 14082495840. Its totient is φ = 4467630240.

The previous prime is 9161720353. The next prime is 9161720363. The reversal of 9161720354 is 4530271619.

It is not an unprimeable number, because it can be changed into a prime (9161720353) 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, 250097 + ... + 284379.

It is an arithmetic number, because the mean of its divisors is an integer number (880155990).

Almost surely, 2^9161720354 is an apocalyptic number.

9161720354 is a deficient number, since it is larger than the sum of its proper divisors (4920775486).

9161720354 is a wasteful number, since it uses less digits than its factorization.

9161720354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37585.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9161720354 is about 95716.8760146297. The cubic root of 9161720354 is about 2092.4688934605.

The spelling of 9161720354 in words is "nine billion, one hundred sixty-one million, seven hundred twenty thousand, three hundred fifty-four".