16255527505 has 32 divisors (see below), whose sum is σ = 23082467328. Its totient is φ = 10754251200.

The previous prime is 16255527503. The next prime is 16255527511. The reversal of 16255527505 is 50572555261.

It is a happy number.

It is not a de Polignac number, because 16255527505 - 2¹ = 16255527503 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16255527503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336504 + ... + 381766.

It is an arithmetic number, because the mean of its divisors is an integer number (721327104).

Almost surely, 2^16255527505 is an apocalyptic number.

It is an amenable number.

16255527505 is a deficient number, since it is larger than the sum of its proper divisors (6826939823).

16255527505 is a wasteful number, since it uses less digits than its factorization.

16255527505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45637.

The product of its (nonzero) digits is 525000, while the sum is 43.

The spelling of 16255527505 in words is "sixteen billion, two hundred fifty-five million, five hundred twenty-seven thousand, five hundred five".