13365631855650 has 48 divisors (see below), whose sum is σ = 33146989644384. Its totient is φ = 3564144554880.

The previous prime is 13365631855649. The next prime is 13365631855657. The reversal of 13365631855650 is 5655813656331.

It is a happy number.

It is a super-2 number, since 2×13365631855650² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13365631855657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41558262 + ... + 41878638.

It is an arithmetic number, because the mean of its divisors is an integer number (690562284258).

Almost surely, 2^{13365631855650} is an apocalyptic number.

13365631855650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13365631855650 is an abundant number, since it is smaller than the sum of its proper divisors (19781357788734).

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

13365631855650 is a wasteful number, since it uses less digits than its factorization.

13365631855650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598515 (or 598510 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 57.

The spelling of 13365631855650 in words is "thirteen trillion, three hundred sixty-five billion, six hundred thirty-one million, eight hundred fifty-five thousand, six hundred fifty".