9121162166 has 4 divisors (see below), whose sum is σ = 13681743252. Its totient is φ = 4560581082.

The previous prime is 9121162153. The next prime is 9121162181. The reversal of 9121162166 is 6612611219.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2280290540 + ... + 2280290543.

It is an arithmetic number, because the mean of its divisors is an integer number (3420435813).

Almost surely, 2^9121162166 is an apocalyptic number.

9121162166 is a deficient number, since it is larger than the sum of its proper divisors (4560581086).

9121162166 is a wasteful number, since it uses less digits than its factorization.

9121162166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560581085.

The product of its digits is 7776, while the sum is 35.

The square root of 9121162166 is about 95504.7756188140. The cubic root of 9121162166 is about 2089.3765961950.

The spelling of 9121162166 in words is "nine billion, one hundred twenty-one million, one hundred sixty-two thousand, one hundred sixty-six".