2001115665602 has 8 divisors (see below), whose sum is σ = 3001692712512. Its totient is φ = 1000551428100.

The previous prime is 2001115665581. The next prime is 2001115665629. The reversal of 2001115665602 is 2065665111002.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2801774 + ... + 3442697.

It is an arithmetic number, because the mean of its divisors is an integer number (375211589064).

Almost surely, 2^{2001115665602} is an apocalyptic number.

2001115665602 is a deficient number, since it is larger than the sum of its proper divisors (1000577046910).

2001115665602 is a wasteful number, since it uses less digits than its factorization.

2001115665602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404704.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 2001115665602 in words is "two trillion, one billion, one hundred fifteen million, six hundred sixty-five thousand, six hundred two".