1316061623205 has 48 divisors (see below), whose sum is σ = 2638465764480. Its totient is φ = 594379626624.

The previous prime is 1316061623197. The next prime is 1316061623293. The reversal of 1316061623205 is 5023261606131.

1316061623205 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 0 + 6 + 1 + 623 + 20 + 5 = 666.

It is not a de Polignac number, because 1316061623205 - 2³ = 1316061623197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1316061623205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25142370 + ... + 25194659.

It is an arithmetic number, because the mean of its divisors is an integer number (54968036760).

Almost surely, 2^{1316061623205} is an apocalyptic number.

1316061623205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316061623205 is an abundant number, since it is smaller than the sum of its proper divisors (1322404141275).

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

1316061623205 is a wasteful number, since it uses less digits than its factorization.

1316061623205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50337130 (or 50337127 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 1316061623205 in words is "one trillion, three hundred sixteen billion, sixty-one million, six hundred twenty-three thousand, two hundred five".