261176653060 has 24 divisors (see below), whose sum is σ = 548696133720. Its totient is φ = 104427773184.

The previous prime is 261176653043. The next prime is 261176653081. The reversal of 261176653060 is 60356671162.

It can be written as a sum of positive squares in 4 ways, for example, as 169231858884 + 91944794176 = 411378^2 + 303224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 261176652998 and 261176653016.

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, 2630545 + ... + 2728024.

It is an arithmetic number, because the mean of its divisors is an integer number (22862338905).

Almost surely, 2^261176653060 is an apocalyptic number.

261176653060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261176653060 is an abundant number, since it is smaller than the sum of its proper divisors (287519480660).

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

261176653060 is a wasteful number, since it uses less digits than its factorization.

261176653060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361015 (or 5361013 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 261176653060 in words is "two hundred sixty-one billion, one hundred seventy-six million, six hundred fifty-three thousand, sixty".