1166016731 has 8 divisors (see below), whose sum is σ = 1272826224. Its totient is φ = 1059341920.

The previous prime is 1166016707. The next prime is 1166016737. The reversal of 1166016731 is 1376106611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166016731 - 2¹⁰ = 1166015707 is a prime.

It is a super-2 number, since 2×1166016731² = 2719190033943852722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166016737) 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, 15116 + ... + 50601.

It is an arithmetic number, because the mean of its divisors is an integer number (159103278).

Almost surely, 2^1166016731 is an apocalyptic number.

1166016731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1166016731 is a deficient number, since it is larger than the sum of its proper divisors (106809493).

1166016731 is a wasteful number, since it uses less digits than its factorization.

1166016731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67341.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1166016731 is about 34146.9871438169. The cubic root of 1166016731 is about 1052.5310762786.

The spelling of 1166016731 in words is "one billion, one hundred sixty-six million, sixteen thousand, seven hundred thirty-one".