1085516507128 has 16 divisors (see below), whose sum is σ = 2155069536480. Its totient is φ = 510831297408.

The previous prime is 1085516507113. The next prime is 1085516507137. The reversal of 1085516507128 is 8217056155801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990869376 + ... + 3990869647.

It is an arithmetic number, because the mean of its divisors is an integer number (134691846030).

Almost surely, 2^{1085516507128} is an apocalyptic number.

It is an amenable number.

1085516507128 is a deficient number, since it is larger than the sum of its proper divisors (1069553029352).

1085516507128 is a wasteful number, since it uses less digits than its factorization.

1085516507128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7981739046 (or 7981739042 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 49.

It can be divided in two parts, 1085516 and 507128, that added together give a square (1592644 = 1262²).

The spelling of 1085516507128 in words is "one trillion, eighty-five billion, five hundred sixteen million, five hundred seven thousand, one hundred twenty-eight".