116001011556 has 18 divisors (see below), whose sum is σ = 293224779302. Its totient is φ = 38667003840.

The previous prime is 116001011551. The next prime is 116001011579. The reversal of 116001011556 is 655110100611.

116001011556 is a `hidden beast` number, since 1 + 1 + 6 + 0 + 0 + 101 + 1 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109474956900 + 6526054656 = 330870^2 + 80784^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×116001011556² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (116001011551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1611125125 + ... + 1611125196.

Almost surely, 2^116001011556 is an apocalyptic number.

It is an amenable number.

116001011556 is an abundant number, since it is smaller than the sum of its proper divisors (177223767746).

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

116001011556 is a wasteful number, since it uses less digits than its factorization.

116001011556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222250331 (or 3222250326 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 116001011556 in words is "one hundred sixteen billion, one million, eleven thousand, five hundred fifty-six".