16404345045 has 32 divisors (see below), whose sum is σ = 31814490240. Its totient is φ = 7953621120.

The previous prime is 16404345043. The next prime is 16404345047. The reversal of 16404345045 is 54054340461.

16404345045 is a `hidden beast` number, since 1 + 640 + 4 + 3 + 4 + 5 + 0 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (16404345043) and next prime (16404345047).

It is not a de Polignac number, because 16404345045 - 2¹ = 16404345043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404345043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5521864 + ... + 5524833.

It is an arithmetic number, because the mean of its divisors is an integer number (994202820).

Almost surely, 2^16404345045 is an apocalyptic number.

16404345045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16404345045 is a deficient number, since it is larger than the sum of its proper divisors (15410145195).

16404345045 is a wasteful number, since it uses less digits than its factorization.

16404345045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046722 (or 11046716 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 16404345045 in words is "sixteen billion, four hundred four million, three hundred forty-five thousand, forty-five".