40333530661 has 4 divisors (see below), whose sum is σ = 40336657452. Its totient is φ = 40330403872.

The previous prime is 40333530631. The next prime is 40333530701. The reversal of 40333530661 is 16603533304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16061760225 + 24271770436 = 126735^2 + 155794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40333530661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40333530631) 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, 1543966 + ... + 1569871.

It is an arithmetic number, because the mean of its divisors is an integer number (10084164363).

Almost surely, 2^40333530661 is an apocalyptic number.

It is an amenable number.

40333530661 is a deficient number, since it is larger than the sum of its proper divisors (3126791).

40333530661 is a wasteful number, since it uses less digits than its factorization.

40333530661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126790.

The product of its (nonzero) digits is 58320, while the sum is 34.

The spelling of 40333530661 in words is "forty billion, three hundred thirty-three million, five hundred thirty thousand, six hundred sixty-one".