671266012 has 24 divisors (see below), whose sum is σ = 1250711280. Its totient is φ = 314138880.

The previous prime is 671265997. The next prime is 671266027. The reversal of 671266012 is 210662176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (671265997) and next prime (671266027).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14962 + ... + 39577.

It is an arithmetic number, because the mean of its divisors is an integer number (52112970).

Almost surely, 2^671266012 is an apocalyptic number.

It is an amenable number.

671266012 is a deficient number, since it is larger than the sum of its proper divisors (579445268).

671266012 is a wasteful number, since it uses less digits than its factorization.

671266012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54741 (or 54739 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 671266012 is about 25908.8018248625. The cubic root of 671266012 is about 875.5848115540.

The spelling of 671266012 in words is "six hundred seventy-one million, two hundred sixty-six thousand, twelve".