2600216646 has 16 divisors (see below), whose sum is σ = 5201197104. Its totient is φ = 866611584.

The previous prime is 2600216621. The next prime is 2600216659. The reversal of 2600216646 is 6466120062.

It is a super-2 number, since 2×2600216646² = 13522253212270978632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18570 + ... + 74466.

It is an arithmetic number, because the mean of its divisors is an integer number (325074819).

Almost surely, 2^2600216646 is an apocalyptic number.

2600216646 is an abundant number, since it is smaller than the sum of its proper divisors (2600980458).

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

2600216646 is a wasteful number, since it uses less digits than its factorization.

2600216646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63655.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 2600216646 is about 50992.3194804865. The cubic root of 2600216646 is about 1375.1070587275.

The spelling of 2600216646 in words is "two billion, six hundred million, two hundred sixteen thousand, six hundred forty-six".