40033700161 has 20 divisors (see below), whose sum is σ = 50295797972. Its totient is φ = 31674990816.

The previous prime is 40033700159. The next prime is 40033700219. The reversal of 40033700161 is 16100733004.

It can be written as a sum of positive squares in 2 ways, for example, as 11950643761 + 28083056400 = 109319^2 + 167580^2 .

It is not a de Polignac number, because 40033700161 - 2¹ = 40033700159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40033700141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 610086 + ... + 672511.

Almost surely, 2^40033700161 is an apocalyptic number.

It is an amenable number.

40033700161 is a deficient number, since it is larger than the sum of its proper divisors (10262097811).

40033700161 is an equidigital number, since it uses as much as digits as its factorization.

40033700161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282638 (or 1282617 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 40033700161 in words is "forty billion, thirty-three million, seven hundred thousand, one hundred sixty-one".