2001387633132 has 12 divisors (see below), whose sum is σ = 4669904477336. Its totient is φ = 667129211040.

The previous prime is 2001387633097. The next prime is 2001387633251. The reversal of 2001387633132 is 2313367831002.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83391151369 + ... + 83391151392.

Almost surely, 2^{2001387633132} is an apocalyptic number.

It is an amenable number.

2001387633132 is an abundant number, since it is smaller than the sum of its proper divisors (2668516844204).

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

2001387633132 is a wasteful number, since it uses less digits than its factorization.

2001387633132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166782302768 (or 166782302766 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 2001387633132 in words is "two trillion, one billion, three hundred eighty-seven million, six hundred thirty-three thousand, one hundred thirty-two".