16015424625 has 64 divisors (see below), whose sum is σ = 30112992000. Its totient is φ = 8396683200.

The previous prime is 16015424471. The next prime is 16015424641. The reversal of 16015424625 is 52642451061.

16015424625 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 5 + 4 + 24 + 625 = 666.

It is not a de Polignac number, because 16015424625 - 2¹⁰ = 16015423601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16015424625.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158911 + ... + 239339.

It is an arithmetic number, because the mean of its divisors is an integer number (470515500).

Almost surely, 2^16015424625 is an apocalyptic number.

16015424625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16015424625 is a deficient number, since it is larger than the sum of its proper divisors (14097567375).

16015424625 is an equidigital number, since it uses as much as digits as its factorization.

16015424625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80512 (or 80496 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 16015424625 its reverse (52642451061), we get a palindrome (68657875686).

The spelling of 16015424625 in words is "sixteen billion, fifteen million, four hundred twenty-four thousand, six hundred twenty-five".