2010721665699 has 48 divisors (see below), whose sum is σ = 2932178121600. Its totient is φ = 1327720584960.

The previous prime is 2010721665611. The next prime is 2010721665707. The reversal of 2010721665699 is 9965661270102.

2010721665699 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 72 + 1 + 6 + 6 + 569 + 9 = 666.

It is not a de Polignac number, because 2010721665699 - 2¹¹ = 2010721663651 is a prime.

It is a super-2 number, since 2×2010721665699² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2010721661699) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462338977 + ... + 462343325.

It is an arithmetic number, because the mean of its divisors is an integer number (61087044200).

Almost surely, 2^{2010721665699} is an apocalyptic number.

2010721665699 is a deficient number, since it is larger than the sum of its proper divisors (921456455901).

2010721665699 is a wasteful number, since it uses less digits than its factorization.

2010721665699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 5609 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 2010721665699 in words is "two trillion, ten billion, seven hundred twenty-one million, six hundred sixty-five thousand, six hundred ninety-nine".