1166361440631 has 16 divisors (see below), whose sum is σ = 1605379703808. Its totient is φ = 752460768000.

The previous prime is 1166361440603. The next prime is 1166361440663. The reversal of 1166361440631 is 1360441636611.

It is not a de Polignac number, because 1166361440631 - 2⁹ = 1166361440119 is a prime.

It is a super-2 number, since 2×1166361440631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166361445631) 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, 2178556 + ... + 2660606.

It is an arithmetic number, because the mean of its divisors is an integer number (100336231488).

Almost surely, 2^{1166361440631} is an apocalyptic number.

1166361440631 is a deficient number, since it is larger than the sum of its proper divisors (439018263177).

1166361440631 is a wasteful number, since it uses less digits than its factorization.

1166361440631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508102.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 1166361440631 in words is "one trillion, one hundred sixty-six billion, three hundred sixty-one million, four hundred forty thousand, six hundred thirty-one".