16452921769 has 16 divisors (see below), whose sum is σ = 17641866880. Its totient is φ = 15297413760.

The previous prime is 16452921733. The next prime is 16452921817. The reversal of 16452921769 is 96712925461.

It is not a de Polignac number, because 16452921769 - 2²¹ = 16450824617 is a prime.

It is a super-2 number, since 2×16452921769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16452921169) 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 15 ways as a sum of consecutive naturals, for example, 514132 + ... + 545194.

It is an arithmetic number, because the mean of its divisors is an integer number (1102616680).

Almost surely, 2^16452921769 is an apocalyptic number.

16452921769 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16452921769 is a deficient number, since it is larger than the sum of its proper divisors (1188945111).

16452921769 is a wasteful number, since it uses less digits than its factorization.

16452921769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31600.

The product of its digits is 1632960, while the sum is 52.

The spelling of 16452921769 in words is "sixteen billion, four hundred fifty-two million, nine hundred twenty-one thousand, seven hundred sixty-nine".