116573132981 has 4 divisors (see below), whose sum is σ = 116714777952. Its totient is φ = 116431488012.

The previous prime is 116573132971. The next prime is 116573133013. The reversal of 116573132981 is 189231375611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116573132981 is a prime.

It is a super-2 number, since 2×116573132981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116573132911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70821251 + ... + 70822896.

It is an arithmetic number, because the mean of its divisors is an integer number (29178694488).

Almost surely, 2^116573132981 is an apocalyptic number.

It is an amenable number.

116573132981 is a deficient number, since it is larger than the sum of its proper divisors (141644971).

116573132981 is an equidigital number, since it uses as much as digits as its factorization.

116573132981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141644970.

The product of its digits is 272160, while the sum is 47.

The spelling of 116573132981 in words is "one hundred sixteen billion, five hundred seventy-three million, one hundred thirty-two thousand, nine hundred eighty-one".