66310426 has 96 divisors (see below), whose sum is σ = 136055808. Its totient is φ = 23950080.

The previous prime is 66310423. The next prime is 66310459. The reversal of 66310426 is 62401366.

It is a junction number, because it is equal to n+sod(n) for n = 66310394 and 66310403.

It is not an unprimeable number, because it can be changed into a prime (66310423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 908326 + ... + 908398.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^66310426 is an apocalyptic number.

66310426 is an abundant number, since it is smaller than the sum of its proper divisors (69745382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66310426 is a wasteful number, since it uses less digits than its factorization.

66310426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66310426 is about 8143.1213917023. The cubic root of 66310426 is about 404.7566001801.

The spelling of 66310426 in words is "sixty-six million, three hundred ten thousand, four hundred twenty-six".