671138330226 has 64 divisors (see below), whose sum is σ = 1669064210688. Its totient is φ = 175178723328.

The previous prime is 671138330221. The next prime is 671138330297. The reversal of 671138330226 is 622033831176.

671138330226 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×671138330226² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (671138330221) 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, 6283075 + ... + 6388998.

It is an arithmetic number, because the mean of its divisors is an integer number (26079128292).

Almost surely, 2^671138330226 is an apocalyptic number.

671138330226 is an abundant number, since it is smaller than the sum of its proper divisors (997925880462).

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

671138330226 is a wasteful number, since it uses less digits than its factorization.

671138330226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672195.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 671138330226 in words is "six hundred seventy-one billion, one hundred thirty-eight million, three hundred thirty thousand, two hundred twenty-six".