10555560555978 has 32 divisors (see below), whose sum is σ = 21578148264960. Its totient is φ = 3441514817520.

The previous prime is 10555560555977. The next prime is 10555560555983. The reversal of 10555560555978 is 87955506555501.

It is a super-2 number, since 2×10555560555978² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10555560555977) 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, 104010568 + ... + 104112003.

It is an arithmetic number, because the mean of its divisors is an integer number (674317133280).

Almost surely, 2^{10555560555978} is an apocalyptic number.

10555560555978 is an abundant number, since it is smaller than the sum of its proper divisors (11022587708982).

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

10555560555978 is a wasteful number, since it uses less digits than its factorization.

10555560555978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208122762.

The product of its (nonzero) digits is 236250000, while the sum is 66.

The spelling of 10555560555978 in words is "ten trillion, five hundred fifty-five billion, five hundred sixty million, five hundred fifty-five thousand, nine hundred seventy-eight".