100011005500550 has 24 divisors (see below), whose sum is σ = 186070221975000. Its totient is φ = 39993702900480.

The previous prime is 100011005500541. The next prime is 100011005500643. The reversal of 100011005500550 is 55005500110001.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267293675 + ... + 267667574.

It is an arithmetic number, because the mean of its divisors is an integer number (7752925915625).

Almost surely, 2^{100011005500550} is an apocalyptic number.

100011005500550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100011005500550 is a deficient number, since it is larger than the sum of its proper divisors (86059216474450).

100011005500550 is a wasteful number, since it uses less digits than its factorization.

100011005500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534965000 (or 534964995 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 100011005500550 its reverse (55005500110001), we get a palindrome (155016505610551).

The spelling of 100011005500550 in words is "one hundred trillion, eleven billion, five million, five hundred thousand, five hundred fifty".