13220078445 has 192 divisors, whose sum is σ = 27927244800. Its totient is φ = 5875296768.

The previous prime is 13220078411. The next prime is 13220078471. The reversal of 13220078445 is 54487002231.

It is a happy number.

13220078445 is a `hidden beast` number, since 1 + 3 + 2 + 200 + 7 + 8 + 445 = 666.

It is not a de Polignac number, because 13220078445 - 2⁷ = 13220078317 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66432456 + ... + 66432654.

It is an arithmetic number, because the mean of its divisors is an integer number (145454400).

Almost surely, 2^13220078445 is an apocalyptic number.

13220078445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13220078445 is an abundant number, since it is smaller than the sum of its proper divisors (14707166355).

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

13220078445 is a wasteful number, since it uses less digits than its factorization.

13220078445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 13220078445 in words is "thirteen billion, two hundred twenty million, seventy-eight thousand, four hundred forty-five".