100994515881 has 24 divisors (see below), whose sum is σ = 156660514560. Its totient is φ = 57705272352.

The previous prime is 100994515829. The next prime is 100994515933. The reversal of 100994515881 is 188515499001.

It is an interprime number because it is at equal distance from previous prime (100994515829) and next prime (100994515933).

It is not a de Polignac number, because 100994515881 - 2¹³ = 100994507689 is a prime.

It is a super-2 number, since 2×100994515881² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100994511881) 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 23 ways as a sum of consecutive naturals, for example, 1706535 + ... + 1764723.

It is an arithmetic number, because the mean of its divisors is an integer number (6527521440).

Almost surely, 2^100994515881 is an apocalyptic number.

It is an amenable number.

100994515881 is a deficient number, since it is larger than the sum of its proper divisors (55665998679).

100994515881 is a wasteful number, since it uses less digits than its factorization.

100994515881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70013 (or 70006 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 51.

The spelling of 100994515881 in words is "one hundred billion, nine hundred ninety-four million, five hundred fifteen thousand, eight hundred eighty-one".