261060216 has 32 divisors (see below), whose sum is σ = 653052240. Its totient is φ = 86966528.

The previous prime is 261060203. The next prime is 261060221. The reversal of 261060216 is 612060162.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 64690 + ... + 68606.

Almost surely, 2^261060216 is an apocalyptic number.

It is an amenable number.

261060216 is an abundant number, since it is smaller than the sum of its proper divisors (391992024).

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

261060216 is a wasteful number, since it uses less digits than its factorization.

261060216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703 (or 6699 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 261060216 is about 16157.3579523386. The cubic root of 261060216 is about 639.1167960567.

It can be divided in two parts, 2610 and 60216, that added together give a palindrome (62826).

The spelling of 261060216 in words is "two hundred sixty-one million, sixty thousand, two hundred sixteen".