671452167168 has 440 divisors, whose sum is σ = 2191661391744. Its totient is φ = 203843174400.

The previous prime is 671452167101. The next prime is 671452167263. The reversal of 671452167168 is 861761254176.

671452167168 is a `hidden beast` number, since 6 + 71 + 452 + 1 + 67 + 1 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43703808 + ... + 43719168.

Almost surely, 2^671452167168 is an apocalyptic number.

671452167168 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671452167168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095830695872).

671452167168 is an abundant number, since it is smaller than the sum of its proper divisors (1520209224576).

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

671452167168 is a wasteful number, since it uses less digits than its factorization.

671452167168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15441 (or 15414 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 671452167168 in words is "six hundred seventy-one billion, four hundred fifty-two million, one hundred sixty-seven thousand, one hundred sixty-eight".