3666901632516 has 72 divisors (see below), whose sum is σ = 10071701203200. Its totient is φ = 1120615093440.

The previous prime is 3666901632509. The next prime is 3666901632517. The reversal of 3666901632516 is 6152361096663.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3666901632517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86446011 + ... + 86488418.

Almost surely, 2^{3666901632516} is an apocalyptic number.

3666901632516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3666901632516 is an abundant number, since it is smaller than the sum of its proper divisors (6404799570684).

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

3666901632516 is a wasteful number, since it uses less digits than its factorization.

3666901632516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172934489 (or 172934484 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 3666901632516 in words is "three trillion, six hundred sixty-six billion, nine hundred one million, six hundred thirty-two thousand, five hundred sixteen".