10116979718399 has 4 divisors (see below), whose sum is σ = 10116986079840. Its totient is φ = 10116973356960.

The previous prime is 10116979718333. The next prime is 10116979718401. The reversal of 10116979718399 is 99381797961101.

It is a Cunningham number, because it is equal to 3180720²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10116979718399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10116979718999) 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, 1590359 + ... + 4771079.

It is an arithmetic number, because the mean of its divisors is an integer number (2529246519960).

Almost surely, 2^{10116979718399} is an apocalyptic number.

10116979718399 is a deficient number, since it is larger than the sum of its proper divisors (6361441).

10116979718399 is an equidigital number, since it uses as much as digits as its factorization.

10116979718399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361440.

The product of its (nonzero) digits is 46294416, while the sum is 71.

The spelling of 10116979718399 in words is "ten trillion, one hundred sixteen billion, nine hundred seventy-nine million, seven hundred eighteen thousand, three hundred ninety-nine".