165037793616 has 240 divisors, whose sum is σ = 494401689600. Its totient is φ = 51242658048.

The previous prime is 165037793611. The next prime is 165037793621. The reversal of 165037793616 is 616397730561.

165037793616 is a `hidden beast` number, since 1 + 6 + 503 + 7 + 79 + 3 + 61 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (165037793611) and next prime (165037793621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165037793611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50638995 + ... + 50642253.

It is an arithmetic number, because the mean of its divisors is an integer number (2060007040).

Almost surely, 2^165037793616 is an apocalyptic number.

165037793616 is a gapful number since it is divisible by the number (16) 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 165037793616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247200844800).

165037793616 is an abundant number, since it is smaller than the sum of its proper divisors (329363895984).

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

165037793616 is a wasteful number, since it uses less digits than its factorization.

165037793616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 165037793616 in words is "one hundred sixty-five billion, thirty-seven million, seven hundred ninety-three thousand, six hundred sixteen".