261303003044 has 12 divisors (see below), whose sum is σ = 457301618844. Its totient is φ = 130645397664.

The previous prime is 261303003043. The next prime is 261303003067. The reversal of 261303003044 is 440300303162.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8937433444 + 252365569600 = 94538^2 + 502360^2 .

It is not an unprimeable number, because it can be changed into a prime (261303003041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428959 + ... + 1601414.

It is an arithmetic number, because the mean of its divisors is an integer number (38108468237).

Almost surely, 2^261303003044 is an apocalyptic number.

It is an amenable number.

261303003044 is a deficient number, since it is larger than the sum of its proper divisors (195998615800).

261303003044 is a wasteful number, since it uses less digits than its factorization.

261303003044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051934 (or 3051932 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The spelling of 261303003044 in words is "two hundred sixty-one billion, three hundred three million, three thousand, forty-four".