16800977040 has 40 divisors (see below), whose sum is σ = 52083029568. Its totient is φ = 4480260480.

The previous prime is 16800977021. The next prime is 16800977041. The reversal of 16800977040 is 4077900861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 16800976983 and 16800977001.

It is not an unprimeable number, because it can be changed into a prime (16800977041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35001796 + ... + 35002275.

Almost surely, 2^16800977040 is an apocalyptic number.

16800977040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16800977040 is an abundant number, since it is smaller than the sum of its proper divisors (35282052528).

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

16800977040 is a wasteful number, since it uses less digits than its factorization.

16800977040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70004087 (or 70004081 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 16800977040 in words is "sixteen billion, eight hundred million, nine hundred seventy-seven thousand, forty".