3646662387432 has 64 divisors (see below), whose sum is σ = 9533579489280. Its totient is φ = 1160192628672.

The previous prime is 3646662387377. The next prime is 3646662387437. The reversal of 3646662387432 is 2347832666463.

It is a super-2 number, since 2×3646662387432² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3646662387437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6878628 + ... + 7389779.

It is an arithmetic number, because the mean of its divisors is an integer number (148962179520).

Almost surely, 2^{3646662387432} is an apocalyptic number.

It is an amenable number.

3646662387432 is an abundant number, since it is smaller than the sum of its proper divisors (5886917101848).

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

3646662387432 is a wasteful number, since it uses less digits than its factorization.

3646662387432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14268902 (or 14268898 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 60.

The spelling of 3646662387432 in words is "three trillion, six hundred forty-six billion, six hundred sixty-two million, three hundred eighty-seven thousand, four hundred thirty-two".