2513001666 has 32 divisors (see below), whose sum is σ = 5993745408. Its totient is φ = 686782800.

The previous prime is 2513001661. The next prime is 2513001683. The reversal of 2513001666 is 6661003152.

It is not an unprimeable number, because it can be changed into a prime (2513001661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299760 + ... + 1301691.

It is an arithmetic number, because the mean of its divisors is an integer number (187304544).

Almost surely, 2^2513001666 is an apocalyptic number.

2513001666 is an abundant number, since it is smaller than the sum of its proper divisors (3480743742).

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

2513001666 is a wasteful number, since it uses less digits than its factorization.

2513001666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601486.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2513001666 is about 50129.8480548266. The cubic root of 2513001666 is about 1359.5575380865.

The spelling of 2513001666 in words is "two billion, five hundred thirteen million, one thousand, six hundred sixty-six".