675620612172 has 240 divisors, whose sum is σ = 2038836602880. Its totient is φ = 192938889600.

The previous prime is 675620612171. The next prime is 675620612231. The reversal of 675620612172 is 271216026576.

675620612172 is a `hidden beast` number, since 6 + 7 + 5 + 6 + 20 + 612 + 1 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (675620612171) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12907638 + ... + 12959874.

It is an arithmetic number, because the mean of its divisors is an integer number (8495152512).

Almost surely, 2^675620612172 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 675620612172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019418301440).

675620612172 is an abundant number, since it is smaller than the sum of its proper divisors (1363215990708).

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

675620612172 is a wasteful number, since it uses less digits than its factorization.

675620612172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52474 (or 52463 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 675620612172 in words is "six hundred seventy-five billion, six hundred twenty million, six hundred twelve thousand, one hundred seventy-two".