13220767752 has 32 divisors (see below), whose sum is σ = 33055210080. Its totient is φ = 4406483840.

The previous prime is 13220767741. The next prime is 13220767801. The reversal of 13220767752 is 25776702231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296983 + ... + 338585.

It is an arithmetic number, because the mean of its divisors is an integer number (1032975315).

Almost surely, 2^13220767752 is an apocalyptic number.

13220767752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220767752 is an abundant number, since it is smaller than the sum of its proper divisors (19834442328).

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

13220767752 is a wasteful number, since it uses less digits than its factorization.

13220767752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54853 (or 54849 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 13220767752 in words is "thirteen billion, two hundred twenty million, seven hundred sixty-seven thousand, seven hundred fifty-two".