35520581161 has 16 divisors (see below), whose sum is σ = 39158159040. Its totient is φ = 32012930880.

The previous prime is 35520581123. The next prime is 35520581177. The reversal of 35520581161 is 16118502553.

It is a cyclic number.

It is not a de Polignac number, because 35520581161 - 2²³ = 35512192553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35520581161.

It is not an unprimeable number, because it can be changed into a prime (35520581101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564551 + ... + 1587091.

It is an arithmetic number, because the mean of its divisors is an integer number (2447384940).

Almost surely, 2^35520581161 is an apocalyptic number.

It is an amenable number.

35520581161 is a deficient number, since it is larger than the sum of its proper divisors (3637577879).

35520581161 is a wasteful number, since it uses less digits than its factorization.

35520581161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25416.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 35520581161 in words is "thirty-five billion, five hundred twenty million, five hundred eighty-one thousand, one hundred sixty-one".