5081535987966 has 48 divisors (see below), whose sum is σ = 11386582272000. Its totient is φ = 1636821158544.

The previous prime is 5081535987959. The next prime is 5081535987967. The reversal of 5081535987966 is 6697895351805.

It is a happy number.

5081535987966 is a `hidden beast` number, since 5 + 0 + 8 + 1 + 535 + 9 + 87 + 9 + 6 + 6 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5081535987894 and 5081535987903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5081535987967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37949266 + ... + 38082933.

It is an arithmetic number, because the mean of its divisors is an integer number (237220464000).

Almost surely, 2^{5081535987966} is an apocalyptic number.

5081535987966 is an abundant number, since it is smaller than the sum of its proper divisors (6305046284034).

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

5081535987966 is a wasteful number, since it uses less digits than its factorization.

5081535987966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76032333 (or 76032330 counting only the distinct ones).

The product of its (nonzero) digits is 489888000, while the sum is 72.

The spelling of 5081535987966 in words is "five trillion, eighty-one billion, five hundred thirty-five million, nine hundred eighty-seven thousand, nine hundred sixty-six".