3615998666742 has 1152 divisors, whose sum is σ = 11632771584000. Its totient is φ = 824840755200.

The previous prime is 3615998666699. The next prime is 3615998666747. The reversal of 3615998666742 is 2476668995163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3615998666747) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 4893096609 + ... + 4893097347.

It is an arithmetic number, because the mean of its divisors is an integer number (10097892000).

Almost surely, 2^{3615998666742} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3615998666742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5816385792000).

3615998666742 is an abundant number, since it is smaller than the sum of its proper divisors (8016772917258).

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

3615998666742 is a wasteful number, since it uses less digits than its factorization.

3615998666742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 839 counting only the distinct ones).

The product of its digits is 705438720, while the sum is 72.

The spelling of 3615998666742 in words is "three trillion, six hundred fifteen billion, nine hundred ninety-eight million, six hundred sixty-six thousand, seven hundred forty-two".