40624235661 has 8 divisors (see below), whose sum is σ = 54402179680. Its totient is φ = 26964557712.

The previous prime is 40624235651. The next prime is 40624235669. The reversal of 40624235661 is 16653242604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40624235661 - 2²¹ = 40622138509 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 (40624235669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29565715 + ... + 29567088.

It is an arithmetic number, because the mean of its divisors is an integer number (6800272460).

Almost surely, 2^40624235661 is an apocalyptic number.

It is an amenable number.

40624235661 is a deficient number, since it is larger than the sum of its proper divisors (13777944019).

40624235661 is a wasteful number, since it uses less digits than its factorization.

40624235661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59133035.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 40624235661 in words is "forty billion, six hundred twenty-four million, two hundred thirty-five thousand, six hundred sixty-one".