116661996 has 72 divisors (see below), whose sum is σ = 324000768. Its totient is φ = 35100000.

The previous prime is 116661953. The next prime is 116662019. The reversal of 116661996 is 699166611.

It is a super-2 number, since 2×116661996² = 27220042621408032, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58821 + ... + 60771.

Almost surely, 2^116661996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116661996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162000384).

116661996 is an abundant number, since it is smaller than the sum of its proper divisors (207338772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116661996 is a wasteful number, since it uses less digits than its factorization.

116661996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2118 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 116661996 is about 10801.0182853285. The cubic root of 116661996 is about 488.6258821893.

The spelling of 116661996 in words is "one hundred sixteen million, six hundred sixty-one thousand, nine hundred ninety-six".