16575015221475 has 24 divisors (see below), whose sum is σ = 27585508795392. Its totient is φ = 8781465012000.

The previous prime is 16575015221447. The next prime is 16575015221497. The reversal of 16575015221475 is 57412251057561.

It is not a de Polignac number, because 16575015221475 - 2¹⁸ = 16575014959331 is a prime.

It is a super-2 number, since 2×16575015221475² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 731777427 + ... + 731800076.

It is an arithmetic number, because the mean of its divisors is an integer number (1149396199808).

Almost surely, 2^{16575015221475} is an apocalyptic number.

16575015221475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16575015221475 is a deficient number, since it is larger than the sum of its proper divisors (11010493573917).

16575015221475 is a wasteful number, since it uses less digits than its factorization.

16575015221475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463577667 (or 1463577662 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 51.

The spelling of 16575015221475 in words is "sixteen trillion, five hundred seventy-five billion, fifteen million, two hundred twenty-one thousand, four hundred seventy-five".