2600216261 has 8 divisors (see below), whose sum is σ = 2626390464. Its totient is φ = 2574167040.

The previous prime is 2600216251. The next prime is 2600216287. The reversal of 2600216261 is 1626120062.

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

It is a cyclic number.

It is not a de Polignac number, because 2600216261 - 2¹⁸ = 2599954117 is a prime.

It is a super-2 number, since 2×2600216261² = 13522249207937640242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2600216261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600216251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856 + ... + 72926.

It is an arithmetic number, because the mean of its divisors is an integer number (328298808).

Almost surely, 2^2600216261 is an apocalyptic number.

It is an amenable number.

2600216261 is a deficient number, since it is larger than the sum of its proper divisors (26174203).

2600216261 is a wasteful number, since it uses less digits than its factorization.

2600216261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62491.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2600216261 is about 50992.3157054080. The cubic root of 2600216261 is about 1375.1069908592.

The spelling of 2600216261 in words is "two billion, six hundred million, two hundred sixteen thousand, two hundred sixty-one".