537161537568 has 192 divisors, whose sum is σ = 1578114679680. Its totient is φ = 158987059200.

The previous prime is 537161537543. The next prime is 537161537581. The reversal of 537161537568 is 865735161735.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 7436988 + ... + 7508868.

It is an arithmetic number, because the mean of its divisors is an integer number (8219347290).

Almost surely, 2^537161537568 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 537161537568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789057339840).

537161537568 is an abundant number, since it is smaller than the sum of its proper divisors (1040953142112).

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

537161537568 is a wasteful number, since it uses less digits than its factorization.

537161537568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72171 (or 72163 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 57.

The spelling of 537161537568 in words is "five hundred thirty-seven billion, one hundred sixty-one million, five hundred thirty-seven thousand, five hundred sixty-eight".