1015551011066 has 16 divisors (see below), whose sum is σ = 1603604421600. Its totient is φ = 481019631408.

The previous prime is 1015551010987. The next prime is 1015551011089. The reversal of 1015551011066 is 6601101555101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250925 + ... + 1447088.

It is an arithmetic number, because the mean of its divisors is an integer number (100225276350).

Almost surely, 2^{1015551011066} is an apocalyptic number.

1015551011066 is a deficient number, since it is larger than the sum of its proper divisors (588053410534).

1015551011066 is a wasteful number, since it uses less digits than its factorization.

1015551011066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713773.

The product of its (nonzero) digits is 4500, while the sum is 32.

Adding to 1015551011066 its reverse (6601101555101), we get a palindrome (7616652566167).

The spelling of 1015551011066 in words is "one trillion, fifteen billion, five hundred fifty-one million, eleven thousand, sixty-six".