1166426651 has 16 divisors (see below), whose sum is σ = 1277203200. Its totient is φ = 1058717088.

The previous prime is 1166426641. The next prime is 1166426707. The reversal of 1166426651 is 1566246611.

It is a happy number.

It is not a de Polignac number, because 1166426651 - 2¹⁰ = 1166425627 is a prime.

It is a super-2 number, since 2×1166426651² = 2721102264326151602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166426621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747410 + ... + 748968.

It is an arithmetic number, because the mean of its divisors is an integer number (79825200).

Almost surely, 2^1166426651 is an apocalyptic number.

1166426651 is a deficient number, since it is larger than the sum of its proper divisors (110776549).

1166426651 is a wasteful number, since it uses less digits than its factorization.

1166426651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its digits is 51840, while the sum is 38.

The square root of 1166426651 is about 34152.9889028764. The cubic root of 1166426651 is about 1052.6544029792.

The spelling of 1166426651 in words is "one billion, one hundred sixty-six million, four hundred twenty-six thousand, six hundred fifty-one".