15126390016 has 72 divisors (see below), whose sum is σ = 32713680384. Its totient is φ = 6952673280.

The previous prime is 15126389983. The next prime is 15126390031. The reversal of 15126390016 is 61009362151.

It is a super-2 number, since 2×15126390016² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146721 + ... + 227551.

It is an arithmetic number, because the mean of its divisors is an integer number (454356672).

Almost surely, 2^15126390016 is an apocalyptic number.

15126390016 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 15126390016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16356840192).

15126390016 is an abundant number, since it is smaller than the sum of its proper divisors (17587290368).

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

15126390016 is an equidigital number, since it uses as much as digits as its factorization.

15126390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80907 (or 80893 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 15126390016 in words is "fifteen billion, one hundred twenty-six million, three hundred ninety thousand, sixteen".