670290945240 has 256 divisors, whose sum is σ = 2377061406720. Its totient is φ = 148020572160.

The previous prime is 670290945221. The next prime is 670290945287. The reversal of 670290945240 is 42549092076.

It is a self number, because there is not a number n which added to its sum of digits gives 670290945240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3452842 + ... + 3641798.

It is an arithmetic number, because the mean of its divisors is an integer number (9285396120).

Almost surely, 2^670290945240 is an apocalyptic number.

670290945240 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 670290945240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188530703360).

670290945240 is an abundant number, since it is smaller than the sum of its proper divisors (1706770461480).

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

670290945240 is a wasteful number, since it uses less digits than its factorization.

670290945240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189122 (or 189118 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 670290945240 in words is "six hundred seventy billion, two hundred ninety million, nine hundred forty-five thousand, two hundred forty".