670670187840 has 336 divisors, whose sum is σ = 2455343953920. Its totient is φ = 167441448960.

The previous prime is 670670187799. The next prime is 670670187853. The reversal of 670670187840 is 48781076076.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9315501 + ... + 9387219.

Almost surely, 2^670670187840 is an apocalyptic number.

670670187840 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 670670187840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227671976960).

670670187840 is an abundant number, since it is smaller than the sum of its proper divisors (1784673766080).

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

670670187840 is a wasteful number, since it uses less digits than its factorization.

670670187840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71950 (or 71937 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 670670187840 in words is "six hundred seventy billion, six hundred seventy million, one hundred eighty-seven thousand, eight hundred forty".