261150616 has 32 divisors (see below), whose sum is σ = 498657600. Its totient is φ = 128194560.

The previous prime is 261150569. The next prime is 261150641. The reversal of 261150616 is 616051162.

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, 120906 + ... + 123046.

It is an arithmetic number, because the mean of its divisors is an integer number (15583050).

Almost surely, 2^261150616 is an apocalyptic number.

It is an amenable number.

261150616 is a deficient number, since it is larger than the sum of its proper divisors (237506984).

261150616 is a wasteful number, since it uses less digits than its factorization.

261150616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 261150616 is about 16160.1551972746. The cubic root of 261150616 is about 639.1905587204.

The spelling of 261150616 in words is "two hundred sixty-one million, one hundred fifty thousand, six hundred sixteen".