42235906665 has 48 divisors (see below), whose sum is σ = 69409828224. Its totient is φ = 21930762240.

The previous prime is 42235906613. The next prime is 42235906681. The reversal of 42235906665 is 56660953224.

It is not a de Polignac number, because 42235906665 - 2⁸ = 42235906409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14547604 + ... + 14550506.

It is an arithmetic number, because the mean of its divisors is an integer number (1446038088).

Almost surely, 2^42235906665 is an apocalyptic number.

It is an amenable number.

42235906665 is a deficient number, since it is larger than the sum of its proper divisors (27173921559).

42235906665 is a wasteful number, since it uses less digits than its factorization.

42235906665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3529 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 42235906665 in words is "forty-two billion, two hundred thirty-five million, nine hundred six thousand, six hundred sixty-five".