671132255640000 has 1120 divisors, whose sum is σ = 2767400407597056. Its totient is φ = 139407920640000.

The previous prime is 671132255639983. The next prime is 671132255640023. The reversal of 671132255640000 is 46552231176.

It is a tau number, because it is divible by the number of its divisors (1120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 30889309137 + ... + 30889330863.

Almost surely, 2^{671132255640000} is an apocalyptic number.

671132255640000 is a gapful number since it is divisible by the number (60) 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 671132255640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383700203798528).

671132255640000 is an abundant number, since it is smaller than the sum of its proper divisors (2096268151957056).

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

671132255640000 is a wasteful number, since it uses less digits than its factorization.

671132255640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25123 (or 25098 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 671132255640000 in words is "six hundred seventy-one trillion, one hundred thirty-two billion, two hundred fifty-five million, six hundred forty thousand".