116667777990 has 128 divisors (see below), whose sum is σ = 305467562880. Its totient is φ = 28405465088.

The previous prime is 116667777971. The next prime is 116667778021. The reversal of 116667777990 is 99777766611.

It is a super-2 number, since 2×116667777990² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2381422 + ... + 2429918.

It is an arithmetic number, because the mean of its divisors is an integer number (2386465335).

Almost surely, 2^116667777990 is an apocalyptic number.

116667777990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 116667777990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152733781440).

116667777990 is an abundant number, since it is smaller than the sum of its proper divisors (188799784890).

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

116667777990 is a wasteful number, since it uses less digits than its factorization.

116667777990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48666.

The product of its (nonzero) digits is 42007896, while the sum is 66.

The spelling of 116667777990 in words is "one hundred sixteen billion, six hundred sixty-seven million, seven hundred seventy-seven thousand, nine hundred ninety".