16445340940 has 48 divisors (see below), whose sum is σ = 41546131200. Its totient is φ = 5341643712.

The previous prime is 16445340913. The next prime is 16445340943. The reversal of 16445340940 is 4904354461.

It is a junction number, because it is equal to n+sod(n) for n = 16445340893 and 16445340902.

It is not an unprimeable number, because it can be changed into a prime (16445340943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3088570 + ... + 3093889.

It is an arithmetic number, because the mean of its divisors is an integer number (865544400).

Almost surely, 2^16445340940 is an apocalyptic number.

16445340940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16445340940 is an abundant number, since it is smaller than the sum of its proper divisors (25100790260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16445340940 is a wasteful number, since it uses less digits than its factorization.

16445340940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182494 (or 6182492 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 16445340940 in words is "sixteen billion, four hundred forty-five million, three hundred forty thousand, nine hundred forty".