58381721616 has 80 divisors (see below), whose sum is σ = 155076405824. Its totient is φ = 18912517632.

The previous prime is 58381721611. The next prime is 58381721621. The reversal of 58381721616 is 61612718385.

It is an interprime number because it is at equal distance from previous prime (58381721611) and next prime (58381721621).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (58381721611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538811 + ... + 1576293.

Almost surely, 2^58381721616 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 58381721616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77538202912).

58381721616 is an abundant number, since it is smaller than the sum of its proper divisors (96694684208).

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

58381721616 is a wasteful number, since it uses less digits than its factorization.

58381721616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38408 (or 38402 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The spelling of 58381721616 in words is "fifty-eight billion, three hundred eighty-one million, seven hundred twenty-one thousand, six hundred sixteen".