261050552130 has 16 divisors (see below), whose sum is σ = 626521325184. Its totient is φ = 69613480560.

The previous prime is 261050552129. The next prime is 261050552137. The reversal of 261050552130 is 31255050162.

It is a happy number.

261050552130 is digitally balanced in base 3, 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 (30), and also a Moran number because the ratio is a prime number: 8701685071 = 261050552130 / (2 + 6 + 1 + 0 + 5 + 0 + 5 + 5 + 2 + 1 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (261050552137) 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, 4350842506 + ... + 4350842565.

It is an arithmetic number, because the mean of its divisors is an integer number (39157582824).

Almost surely, 2^261050552130 is an apocalyptic number.

261050552130 is an abundant number, since it is smaller than the sum of its proper divisors (365470773054).

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

261050552130 is a wasteful number, since it uses less digits than its factorization.

261050552130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701685081.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 261050552130 in words is "two hundred sixty-one billion, fifty million, five hundred fifty-two thousand, one hundred thirty".