16328239524 has 135 divisors (see below), whose sum is σ = 44300050641. Its totient is φ = 5244173280.

The previous prime is 16328239519. The next prime is 16328239537. The reversal of 16328239524 is 42593282361.

The square root of 16328239524 is 127782.

It is a perfect power (a square), and thus also a powerful number.

16328239524 is a `hidden beast` number, since 1 + 632 + 8 + 2 + 3 + 9 + 5 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15207329124 + 1120910400 = 123318^2 + 33480^2 .

It is a super-2 number, since 2×16328239524² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16328239524.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 71302242 + ... + 71302470.

Almost surely, 2^16328239524 is an apocalyptic number.

16328239524 is the 127782-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16328239524

16328239524 is an abundant number, since it is smaller than the sum of its proper divisors (27971811117).

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

16328239524 is an equidigital number, since it uses as much as digits as its factorization.

16328239524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 265 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 16328239524 in words is "sixteen billion, three hundred twenty-eight million, two hundred thirty-nine thousand, five hundred twenty-four".