2015730658830 has 128 divisors (see below), whose sum is σ = 5553785419776. Its totient is φ = 458662809600.

The previous prime is 2015730658793. The next prime is 2015730658831. The reversal of 2015730658830 is 388560375102.

It is a super-3 number, since 3×2015730658830³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2015730658830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015730658831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 193982935 + ... + 193993325.

It is an arithmetic number, because the mean of its divisors is an integer number (43388948592).

Almost surely, 2^{2015730658830} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015730658830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2776892709888).

2015730658830 is an abundant number, since it is smaller than the sum of its proper divisors (3538054760946).

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

2015730658830 is a wasteful number, since it uses less digits than its factorization.

2015730658830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14482.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 2015730658830 in words is "two trillion, fifteen billion, seven hundred thirty million, six hundred fifty-eight thousand, eight hundred thirty".