260866551 has 8 divisors (see below), whose sum is σ = 379442304. Its totient is φ = 158100920.

The previous prime is 260866549. The next prime is 260866579. The reversal of 260866551 is 155668062.

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 260866551 - 2¹ = 260866549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260866351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3952491 + ... + 3952556.

It is an arithmetic number, because the mean of its divisors is an integer number (47430288).

Almost surely, 2^260866551 is an apocalyptic number.

260866551 is a deficient number, since it is larger than the sum of its proper divisors (118575753).

260866551 is a wasteful number, since it uses less digits than its factorization.

260866551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905061.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 260866551 is about 16151.3637504701. The cubic root of 260866551 is about 638.9587160860.

The spelling of 260866551 in words is "two hundred sixty million, eight hundred sixty-six thousand, five hundred fifty-one".