13131902543666 has 32 divisors (see below), whose sum is σ = 19936297212480. Its totient is φ = 6486767560000.

The previous prime is 13131902543633. The next prime is 13131902543681. The reversal of 13131902543666 is 66634520913131.

13131902543666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13131902543666² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198396965 + ... + 198463143.

It is an arithmetic number, because the mean of its divisors is an integer number (623009287890).

Almost surely, 2^{13131902543666} is an apocalyptic number.

13131902543666 is a deficient number, since it is larger than the sum of its proper divisors (6804394668814).

13131902543666 is a wasteful number, since it uses less digits than its factorization.

13131902543666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68410.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 13131902543666 in words is "thirteen trillion, one hundred thirty-one billion, nine hundred two million, five hundred forty-three thousand, six hundred sixty-six".