2645103206 has 4 divisors (see below), whose sum is σ = 3967654812. Its totient is φ = 1322551602.

The previous prime is 2645103173. The next prime is 2645103239. The reversal of 2645103206 is 6023015462.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2645103173) and next prime (2645103239).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661275800 + ... + 661275803.

It is an arithmetic number, because the mean of its divisors is an integer number (991913703).

Almost surely, 2^2645103206 is an apocalyptic number.

2645103206 is a deficient number, since it is larger than the sum of its proper divisors (1322551606).

2645103206 is a wasteful number, since it uses less digits than its factorization.

2645103206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322551605.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2645103206 is about 51430.5668450193. The cubic root of 2645103206 is about 1382.9746110189.

Adding to 2645103206 its reverse (6023015462), we get a palindrome (8668118668).

The spelling of 2645103206 in words is "two billion, six hundred forty-five million, one hundred three thousand, two hundred six".