1001100110550 has 48 divisors (see below), whose sum is σ = 2484439860672. Its totient is φ = 266775988000.

The previous prime is 1001100110539. The next prime is 1001100110567. The reversal of 1001100110550 is 550110011001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2082144 + ... + 2517443.

It is an arithmetic number, because the mean of its divisors is an integer number (51759163764).

Almost surely, 2^{1001100110550} is an apocalyptic number.

1001100110550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001100110550 is an abundant number, since it is smaller than the sum of its proper divisors (1483339750122).

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

1001100110550 is a wasteful number, since it uses less digits than its factorization.

1001100110550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601053 (or 4601048 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 1001100110550 its reverse (550110011001), we get a palindrome (1551210121551).

The spelling of 1001100110550 in words is "one trillion, one billion, one hundred million, one hundred ten thousand, five hundred fifty".