670218501672 has 96 divisors (see below), whose sum is σ = 1847506752000. Its totient is φ = 219437112960.

The previous prime is 670218501661. The next prime is 670218501691. The reversal of 670218501672 is 276105812076.

670218501672 is a `hidden beast` number, since 6 + 70 + 2 + 1 + 8 + 501 + 6 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3051729 + ... + 3263967.

It is an arithmetic number, because the mean of its divisors is an integer number (19244862000).

Almost surely, 2^670218501672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670218501672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923753376000).

670218501672 is an abundant number, since it is smaller than the sum of its proper divisors (1177288250328).

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

670218501672 is a wasteful number, since it uses less digits than its factorization.

670218501672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213031 (or 213024 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 670218501672 in words is "six hundred seventy billion, two hundred eighteen million, five hundred one thousand, six hundred seventy-two".