116135221451 has 4 divisors (see below), whose sum is σ = 116137325304. Its totient is φ = 116133117600.

The previous prime is 116135221417. The next prime is 116135221459. The reversal of 116135221451 is 154122531611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154122531611 = 239 ⋅644864149.

It is a cyclic number.

It is not a de Polignac number, because 116135221451 - 2¹⁰ = 116135220427 is a prime.

It is a super-2 number, since 2×116135221451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116135221459) 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, 966830 + ... + 1080291.

It is an arithmetic number, because the mean of its divisors is an integer number (29034331326).

Almost surely, 2^116135221451 is an apocalyptic number.

116135221451 is a deficient number, since it is larger than the sum of its proper divisors (2103853).

116135221451 is an equidigital number, since it uses as much as digits as its factorization.

116135221451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103852.

The product of its digits is 7200, while the sum is 32.

The spelling of 116135221451 in words is "one hundred sixteen billion, one hundred thirty-five million, two hundred twenty-one thousand, four hundred fifty-one".