1161166078 has 8 divisors (see below), whose sum is σ = 1757163168. Its totient is φ = 575445024.

The previous prime is 1161166031. The next prime is 1161166081. The reversal of 1161166078 is 8706611611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2568726 + ... + 2569177.

It is an arithmetic number, because the mean of its divisors is an integer number (219645396).

Almost surely, 2^1161166078 is an apocalyptic number.

1161166078 is a deficient number, since it is larger than the sum of its proper divisors (595997090).

1161166078 is a wasteful number, since it uses less digits than its factorization.

1161166078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138018.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1161166078 is about 34075.8870464145. The cubic root of 1161166078 is about 1051.0695309155.

Adding to 1161166078 its reverse (8706611611), we get a palindrome (9867777689).

The spelling of 1161166078 in words is "one billion, one hundred sixty-one million, one hundred sixty-six thousand, seventy-eight".