16499495481 has 32 divisors (see below), whose sum is σ = 26643072000. Its totient is φ = 8872079040.

The previous prime is 16499495477. The next prime is 16499495489. The reversal of 16499495481 is 18459499461.

It is not a de Polignac number, because 16499495481 - 2² = 16499495477 is a prime.

It is a super-2 number, since 2×16499495481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16499495489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79315 + ... + 198216.

It is an arithmetic number, because the mean of its divisors is an integer number (832596000).

Almost surely, 2^16499495481 is an apocalyptic number.

It is an amenable number.

16499495481 is a deficient number, since it is larger than the sum of its proper divisors (10143576519).

16499495481 is a wasteful number, since it uses less digits than its factorization.

16499495481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277709.

The product of its digits is 11197440, while the sum is 60.

The spelling of 16499495481 in words is "sixteen billion, four hundred ninety-nine million, four hundred ninety-five thousand, four hundred eighty-one".