261362056024 has 64 divisors (see below), whose sum is σ = 510272755200. Its totient is φ = 125391037824.

The previous prime is 261362055961. The next prime is 261362056027. The reversal of 261362056024 is 420650263162.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261362056027) 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, 21203127 + ... + 21215449.

It is an arithmetic number, because the mean of its divisors is an integer number (7973011800).

Almost surely, 2^261362056024 is an apocalyptic number.

It is an amenable number.

261362056024 is a deficient number, since it is larger than the sum of its proper divisors (248910699176).

261362056024 is a wasteful number, since it uses less digits than its factorization.

261362056024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352 (or 13348 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 261362056024 in words is "two hundred sixty-one billion, three hundred sixty-two million, fifty-six thousand, twenty-four".