261110196 has 48 divisors (see below), whose sum is σ = 686246400. Its totient is φ = 85841856.

The previous prime is 261110183. The next prime is 261110197. The reversal of 261110196 is 691011162.

261110196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261110197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8676 + ... + 24443.

It is an arithmetic number, because the mean of its divisors is an integer number (14296800).

Almost surely, 2^261110196 is an apocalyptic number.

It is an amenable number.

261110196 is an abundant number, since it is smaller than the sum of its proper divisors (425136204).

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

261110196 is a wasteful number, since it uses less digits than its factorization.

261110196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33205 (or 33197 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 261110196 is about 16158.9045420783. The cubic root of 261110196 is about 639.1575797753.

The spelling of 261110196 in words is "two hundred sixty-one million, one hundred ten thousand, one hundred ninety-six".