10400320255 has 8 divisors (see below), whose sum is σ = 13440413952. Its totient is φ = 7680236448.

The previous prime is 10400320241. The next prime is 10400320261. The reversal of 10400320255 is 55202300401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10400320255 - 2⁷ = 10400320127 is a prime.

It is a super-2 number, since 2×10400320255² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 80002399 + ... + 80002528.

It is an arithmetic number, because the mean of its divisors is an integer number (1680051744).

Almost surely, 2^10400320255 is an apocalyptic number.

10400320255 is a deficient number, since it is larger than the sum of its proper divisors (3040093697).

10400320255 is a wasteful number, since it uses less digits than its factorization.

10400320255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160004945.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 10400320255 its reverse (55202300401), we get a palindrome (65602620656).

The spelling of 10400320255 in words is "ten billion, four hundred million, three hundred twenty thousand, two hundred fifty-five".