1168806261 has 48 divisors (see below), whose sum is σ = 1926581760. Its totient is φ = 626663520.

The previous prime is 1168806257. The next prime is 1168806281. The reversal of 1168806261 is 1626088611.

It is not a de Polignac number, because 1168806261 - 2² = 1168806257 is a prime.

It is a super-2 number, since 2×1168806261² = 2732216151505600242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168806241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296896 + ... + 300806.

It is an arithmetic number, because the mean of its divisors is an integer number (40137120).

Almost surely, 2^1168806261 is an apocalyptic number.

It is an amenable number.

1168806261 is a deficient number, since it is larger than the sum of its proper divisors (757775499).

1168806261 is a wasteful number, since it uses less digits than its factorization.

1168806261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054 (or 4047 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1168806261 is about 34187.8086603982. The cubic root of 1168806261 is about 1053.3697517073.

The spelling of 1168806261 in words is "one billion, one hundred sixty-eight million, eight hundred six thousand, two hundred sixty-one".