116021171565 has 48 divisors (see below), whose sum is σ = 220243645440. Its totient is φ = 56149994880.

The previous prime is 116021171561. The next prime is 116021171573. The reversal of 116021171565 is 565171120611.

116021171565 is a `hidden beast` number, since 1 + 1 + 6 + 0 + 21 + 1 + 71 + 565 = 666.

It is not a de Polignac number, because 116021171565 - 2² = 116021171561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116021171561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1646221 + ... + 1715250.

It is an arithmetic number, because the mean of its divisors is an integer number (4588409280).

Almost surely, 2^116021171565 is an apocalyptic number.

116021171565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116021171565 is a deficient number, since it is larger than the sum of its proper divisors (104222473875).

116021171565 is a wasteful number, since it uses less digits than its factorization.

116021171565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361554 (or 3361551 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The spelling of 116021171565 in words is "one hundred sixteen billion, twenty-one million, one hundred seventy-one thousand, five hundred sixty-five".