116161464440 has 128 divisors (see below), whose sum is σ = 323001354240. Its totient is φ = 36686432256.

The previous prime is 116161464421. The next prime is 116161464449. The reversal of 116161464440 is 44464161611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 116161464394 and 116161464403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116161464449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35894 + ... + 483333.

It is an arithmetic number, because the mean of its divisors is an integer number (2523448080).

Almost surely, 2^116161464440 is an apocalyptic number.

116161464440 is a gapful number since it is divisible by the number (10) 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 116161464440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161500677120).

116161464440 is an abundant number, since it is smaller than the sum of its proper divisors (206839889800).

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

116161464440 is a wasteful number, since it uses less digits than its factorization.

116161464440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519309 (or 519305 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 116161464440 in words is "one hundred sixteen billion, one hundred sixty-one million, four hundred sixty-four thousand, four hundred forty".