671237228552 has 108 divisors (see below), whose sum is σ = 1470498454215. Its totient is φ = 286974927360.

The previous prime is 671237228551. The next prime is 671237228581. The reversal of 671237228552 is 255822732176.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 422429802916 + 248807425636 = 649946^2 + 498806^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=579326.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671237228552.

It is not an unprimeable number, because it can be changed into a prime (671237228551) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 433335074 + ... + 433336622.

Almost surely, 2^671237228552 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 671237228552

671237228552 is an abundant number, since it is smaller than the sum of its proper divisors (799261225663).

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

671237228552 is a wasteful number, since it uses less digits than its factorization.

671237228552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160 (or 1579 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 50.

Multiplying 671237228552 by its sum of digits (50), we get a square (33561861427600 = 5793260²).

The spelling of 671237228552 in words is "six hundred seventy-one billion, two hundred thirty-seven million, two hundred twenty-eight thousand, five hundred fifty-two".