16291428075 has 96 divisors (see below), whose sum is σ = 32302932480. Its totient is φ = 8002281600.

The previous prime is 16291428073. The next prime is 16291428089. The reversal of 16291428075 is 57082419261.

16291428075 is a `hidden beast` number, since 1 + 629 + 14 + 2 + 8 + 0 + 7 + 5 = 666.

It is not a de Polignac number, because 16291428075 - 2¹ = 16291428073 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 16291428075.

It is not an unprimeable number, because it can be changed into a prime (16291428073) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4411980 + ... + 4415670.

It is an arithmetic number, because the mean of its divisors is an integer number (336488880).

Almost surely, 2^16291428075 is an apocalyptic number.

16291428075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16291428075 is a deficient number, since it is larger than the sum of its proper divisors (16011504405).

16291428075 is a wasteful number, since it uses less digits than its factorization.

16291428075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 16291428075 in words is "sixteen billion, two hundred ninety-one million, four hundred twenty-eight thousand, seventy-five".