16272660555 has 48 divisors (see below), whose sum is σ = 28619160960. Its totient is φ = 8552044800.

The previous prime is 16272660553. The next prime is 16272660589. The reversal of 16272660555 is 55506627261.

16272660555 is a `hidden beast` number, since 16 + 2 + 7 + 26 + 60 + 555 = 666.

It is not a de Polignac number, because 16272660555 - 2¹ = 16272660553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16272660555.

It is not an unprimeable number, because it can be changed into a prime (16272660553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1919025 + ... + 1927485.

It is an arithmetic number, because the mean of its divisors is an integer number (596232520).

Almost surely, 2^16272660555 is an apocalyptic number.

16272660555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16272660555 is a deficient number, since it is larger than the sum of its proper divisors (12346500405).

16272660555 is a wasteful number, since it uses less digits than its factorization.

16272660555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9092 (or 9089 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 16272660555 in words is "sixteen billion, two hundred seventy-two million, six hundred sixty thousand, five hundred fifty-five".