42665203126 has 64 divisors (see below), whose sum is σ = 81074552832. Its totient is φ = 16385991552.

The previous prime is 42665203123. The next prime is 42665203153. The reversal of 42665203126 is 62130256624.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42665203123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3137995 + ... + 3151561.

It is an arithmetic number, because the mean of its divisors is an integer number (1266789888).

Almost surely, 2^42665203126 is an apocalyptic number.

42665203126 is a deficient number, since it is larger than the sum of its proper divisors (38409349706).

42665203126 is a wasteful number, since it uses less digits than its factorization.

42665203126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14093.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 42665203126 in words is "forty-two billion, six hundred sixty-five million, two hundred three thousand, one hundred twenty-six".