42065570656 has 24 divisors (see below), whose sum is σ = 82851350904. Its totient is φ = 21023957760.

The previous prime is 42065570653. The next prime is 42065570663. The reversal of 42065570656 is 65607556024.

42065570656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42065570656² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42065570653) 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, 198090 + ... + 351241.

It is an arithmetic number, because the mean of its divisors is an integer number (3452139621).

Almost surely, 2^42065570656 is an apocalyptic number.

It is an amenable number.

42065570656 is a deficient number, since it is larger than the sum of its proper divisors (40785780248).

42065570656 is a wasteful number, since it uses less digits than its factorization.

42065570656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551734 (or 551726 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 42065570656 in words is "forty-two billion, sixty-five million, five hundred seventy thousand, six hundred fifty-six".