670717044720 has 480 divisors, whose sum is σ = 2403221184000. Its totient is φ = 167277090816.

The previous prime is 670717044703. The next prime is 670717044727. The reversal of 670717044720 is 27440717076.

670717044720 is a `hidden beast` number, since 6 + 7 + 0 + 7 + 170 + 4 + 472 + 0 = 666.

It is a super-2 number, since 2×670717044720² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670717044727) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154221106 + ... + 154225454.

It is an arithmetic number, because the mean of its divisors is an integer number (5006710800).

Almost surely, 2^670717044720 is an apocalyptic number.

670717044720 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 670717044720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201610592000).

670717044720 is an abundant number, since it is smaller than the sum of its proper divisors (1732504139280).

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

670717044720 is a wasteful number, since it uses less digits than its factorization.

670717044720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The spelling of 670717044720 in words is "six hundred seventy billion, seven hundred seventeen million, forty-four thousand, seven hundred twenty".