671003777148 has 12 divisors (see below), whose sum is σ = 1565675480040. Its totient is φ = 223667925712.

The previous prime is 671003777137. The next prime is 671003777159. The reversal of 671003777148 is 841777300176.

671003777148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (671003777137) and next prime (671003777159).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 671003777148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27958490703 + ... + 27958490726.

It is an arithmetic number, because the mean of its divisors is an integer number (130472956670).

Almost surely, 2^671003777148 is an apocalyptic number.

It is an amenable number.

671003777148 is an abundant number, since it is smaller than the sum of its proper divisors (894671702892).

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

671003777148 is a wasteful number, since it uses less digits than its factorization.

671003777148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55916981436 (or 55916981434 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The spelling of 671003777148 in words is "six hundred seventy-one billion, three million, seven hundred seventy-seven thousand, one hundred forty-eight".