16352015625 has 189 divisors, whose sum is σ = 33532715307. Its totient is φ = 7672500000.

The previous prime is 16352015591. The next prime is 16352015633. The reversal of 16352015625 is 52651025361.

The square root of 16352015625 is 127875.

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

16352015625 is a `hidden beast` number, since 1 + 6 + 3 + 5 + 20 + 1 + 5 + 625 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 14325935481 + 2026080144 = 119691^2 + 45012^2 .

It is not a de Polignac number, because 16352015625 - 2¹³ = 16352007433 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16352015625.

It is an unprimeable number.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 527484360 + ... + 527484390.

Almost surely, 2^16352015625 is an apocalyptic number.

16352015625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16352015625 is the 127875-th square number.

16352015625 is the 63938-th centered octagonal number.

It is an amenable number.

16352015625 is an abundant number, since it is smaller than the sum of its proper divisors (17180699682).

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

16352015625 is an frugal number, since it uses more digits than its factorization.

16352015625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Multiplying 16352015625 by its sum of digits (36), we get a square (588672562500 = 767250²).

The spelling of 16352015625 in words is "sixteen billion, three hundred fifty-two million, fifteen thousand, six hundred twenty-five".