13042035666 has 160 divisors (see below), whose sum is σ = 32438330496. Its totient is φ = 3883680000.

The previous prime is 13042035659. The next prime is 13042035697. The reversal of 13042035666 is 66653024031.

It is a self number, because there is not a number n which added to its sum of digits gives 13042035666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41935651 + ... + 41935961.

Almost surely, 2^13042035666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13042035666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16219165248).

13042035666 is an abundant number, since it is smaller than the sum of its proper divisors (19396294830).

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

13042035666 is a wasteful number, since it uses less digits than its factorization.

13042035666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 13042035666 its reverse (66653024031), we get a palindrome (79695059697).

The spelling of 13042035666 in words is "thirteen billion, forty-two million, thirty-five thousand, six hundred sixty-six".