16291448073 has 12 divisors (see below), whose sum is σ = 24291191808. Its totient is φ = 10510611480.

The previous prime is 16291448051. The next prime is 16291448093. The reversal of 16291448073 is 37084419261.

16291448073 is a `hidden beast` number, since 1 + 629 + 14 + 4 + 8 + 0 + 7 + 3 = 666.

It is not a de Polignac number, because 16291448073 - 2⁶ = 16291448009 is a prime.

It is a super-2 number, since 2×16291448073² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16291448093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29195865 + ... + 29196422.

It is an arithmetic number, because the mean of its divisors is an integer number (2024265984).

Almost surely, 2^16291448073 is an apocalyptic number.

It is an amenable number.

16291448073 is a deficient number, since it is larger than the sum of its proper divisors (7999743735).

16291448073 is a wasteful number, since it uses less digits than its factorization.

16291448073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58392324 (or 58392321 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 16291448073 in words is "sixteen billion, two hundred ninety-one million, four hundred forty-eight thousand, seventy-three".