116543640 has 32 divisors (see below), whose sum is σ = 349631280. Its totient is φ = 31078272.

The previous prime is 116543639. The next prime is 116543641. The reversal of 116543640 is 46345611.

It is an interprime number because it is at equal distance from previous prime (116543639) and next prime (116543641).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 116543598 and 116543607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116543641) 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, 485479 + ... + 485718.

Almost surely, 2^116543640 is an apocalyptic number.

116543640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116543640 is an abundant number, since it is smaller than the sum of its proper divisors (233087640).

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

116543640 is a wasteful number, since it uses less digits than its factorization.

116543640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971211 (or 971207 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 116543640 is about 10795.5379671418. The cubic root of 116543640 is about 488.4605859343.

The spelling of 116543640 in words is "one hundred sixteen million, five hundred forty-three thousand, six hundred forty".