537272066406520 has 128 divisors (see below), whose sum is σ = 1234014836313600. Its totient is φ = 210466335998464.

The previous prime is 537272066406503. The next prime is 537272066406533. The reversal of 537272066406520 is 25604660272735.

It is a happy number.

It is a super-2 number, since 2×537272066406520² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682304949 + ... + 683091931.

It is an arithmetic number, because the mean of its divisors is an integer number (9640740908700).

Almost surely, 2^{537272066406520} 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 537272066406520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617007418156800).

537272066406520 is an abundant number, since it is smaller than the sum of its proper divisors (696742769907080).

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

537272066406520 is a wasteful number, since it uses less digits than its factorization.

537272066406520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788149 (or 788145 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 55.

The spelling of 537272066406520 in words is "five hundred thirty-seven trillion, two hundred seventy-two billion, sixty-six million, four hundred six thousand, five hundred twenty".