2513002666 has 8 divisors (see below), whose sum is σ = 3772574820. Its totient is φ = 1255477728.

The previous prime is 2513002663. The next prime is 2513002669. The reversal of 2513002666 is 6662003152.

It is an interprime number because it is at equal distance from previous prime (2513002663) and next prime (2513002669).

It can be written as a sum of positive squares in 2 ways, for example, as 1439064225 + 1073938441 = 37935^2 + 32771^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2513002663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508731 + ... + 513646.

Almost surely, 2^2513002666 is an apocalyptic number.

2513002666 is a deficient number, since it is larger than the sum of its proper divisors (1259572154).

2513002666 is a wasteful number, since it uses less digits than its factorization.

2513002666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023608.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2513002666 is about 50129.8580289232. The cubic root of 2513002666 is about 1359.5577184230.

The spelling of 2513002666 in words is "two billion, five hundred thirteen million, two thousand, six hundred sixty-six".