5355166081 has 4 divisors (see below), whose sum is σ = 5356642132. Its totient is φ = 5353690032.

The previous prime is 5355166079. The next prime is 5355166099. The reversal of 5355166081 is 1806615535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1806615535 = 5 ⋅361323107.

It can be written as a sum of positive squares in 2 ways, for example, as 673869681 + 4681296400 = 25959^2 + 68420^2 .

It is a cyclic number.

It is not a de Polignac number, because 5355166081 - 2¹ = 5355166079 is a prime.

It is a super-2 number, since 2×5355166081² = 57355607510185797122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5355166181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732570 + ... + 739843.

It is an arithmetic number, because the mean of its divisors is an integer number (1339160533).

Almost surely, 2^5355166081 is an apocalyptic number.

It is an amenable number.

5355166081 is a deficient number, since it is larger than the sum of its proper divisors (1476051).

5355166081 is a wasteful number, since it uses less digits than its factorization.

5355166081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476050.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 5355166081 is about 73179.0002733024. Note that the first 3 decimals coincide. The cubic root of 5355166081 is about 1749.5417663904.

Subtracting from 5355166081 its sum of digits (40), we obtain a square (5355166041 = 73179²).

The spelling of 5355166081 in words is "five billion, three hundred fifty-five million, one hundred sixty-six thousand, eighty-one".