2001581093052 has 30 divisors (see below), whose sum is σ = 5232528352128. Its totient is φ = 667193697576.

The previous prime is 2001581093051. The next prime is 2001581093077. The reversal of 2001581093052 is 2503901851002.

2001581093052 is a `hidden beast` number, since 20 + 0 + 1 + 581 + 0 + 9 + 3 + 0 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2001581092998 and 2001581093016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001581093051) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3088859388 + ... + 3088860035.

Almost surely, 2^{2001581093052} is an apocalyptic number.

It is an amenable number.

2001581093052 is an abundant number, since it is smaller than the sum of its proper divisors (3230947259076).

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

2001581093052 is a wasteful number, since it uses less digits than its factorization.

2001581093052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177719439 (or 6177719428 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 2001581093052 in words is "two trillion, one billion, five hundred eighty-one million, ninety-three thousand, fifty-two".