116811861012 has 144 divisors (see below), whose sum is σ = 368378285184. Its totient is φ = 30320640000.

The previous prime is 116811860993. The next prime is 116811861017. The reversal of 116811861012 is 210168118611.

116811861012 is a `hidden beast` number, since 1 + 16 + 8 + 1 + 18 + 610 + 12 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116811861017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4424812 + ... + 4451132.

It is an arithmetic number, because the mean of its divisors is an integer number (2558182536).

Almost surely, 2^116811861012 is an apocalyptic number.

116811861012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116811861012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184189142592).

116811861012 is an abundant number, since it is smaller than the sum of its proper divisors (251566424172).

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

116811861012 is a wasteful number, since it uses less digits than its factorization.

116811861012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27950 (or 27945 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

Adding to 116811861012 its reverse (210168118611), we get a palindrome (326979979623).

The spelling of 116811861012 in words is "one hundred sixteen billion, eight hundred eleven million, eight hundred sixty-one thousand, twelve".