16011806473 has 36 divisors (see below), whose sum is σ = 18604940220. Its totient is φ = 13726123008.

The previous prime is 16011806467. The next prime is 16011806479. The reversal of 16011806473 is 37460811061.

It is an interprime number because it is at equal distance from previous prime (16011806467) and next prime (16011806479).

It can be written as a sum of positive squares in 6 ways, for example, as 11580409 + 16000226064 = 3403^2 + 126492^2 .

It is not a de Polignac number, because 16011806473 - 2⁹ = 16011805961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16011806479) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19791693 + ... + 19792501.

It is an arithmetic number, because the mean of its divisors is an integer number (516803895).

Almost surely, 2^16011806473 is an apocalyptic number.

16011806473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16011806473 is a deficient number, since it is larger than the sum of its proper divisors (2593133747).

16011806473 is an equidigital number, since it uses as much as digits as its factorization.

16011806473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 16011806473 in words is "sixteen billion, eleven million, eight hundred six thousand, four hundred seventy-three".