10505545455 has 32 divisors (see below), whose sum is σ = 17727632640. Its totient is φ = 5297840640.

The previous prime is 10505545429. The next prime is 10505545507. The reversal of 10505545455 is 55454550501.

It is not a de Polignac number, because 10505545455 - 2¹⁴ = 10505529071 is a prime.

It is a super-2 number, since 2×10505545455² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113815 + ... + 184295.

It is an arithmetic number, because the mean of its divisors is an integer number (553988520).

Almost surely, 2^10505545455 is an apocalyptic number.

10505545455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10505545455 is a deficient number, since it is larger than the sum of its proper divisors (7222087185).

10505545455 is a wasteful number, since it uses less digits than its factorization.

10505545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71031.

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 10505545455 in words is "ten billion, five hundred five million, five hundred forty-five thousand, four hundred fifty-five".