16352177121 has 48 divisors (see below), whose sum is σ = 27763527168. Its totient is φ = 9078480000.

The previous prime is 16352177071. The next prime is 16352177143. The reversal of 16352177121 is 12177125361.

16352177121 is a `hidden beast` number, since 1 + 6 + 3 + 521 + 7 + 7 + 121 = 666.

It is not a de Polignac number, because 16352177121 - 2¹⁰ = 16352176097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16352172121) 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, 1745911 + ... + 1755251.

It is an arithmetic number, because the mean of its divisors is an integer number (578406816).

Almost surely, 2^16352177121 is an apocalyptic number.

It is an amenable number.

16352177121 is a deficient number, since it is larger than the sum of its proper divisors (11411350047).

16352177121 is a wasteful number, since it uses less digits than its factorization.

16352177121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142 (or 10139 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The spelling of 16352177121 in words is "sixteen billion, three hundred fifty-two million, one hundred seventy-seven thousand, one hundred twenty-one".