16402876640 has 48 divisors (see below), whose sum is σ = 38816502480. Its totient is φ = 6550195200.

The previous prime is 16402876591. The next prime is 16402876657. The reversal of 16402876640 is 4667820461.

It is a junction number, because it is equal to n+sod(n) for n = 16402876591 and 16402876600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10871 + ... + 181449.

It is an arithmetic number, because the mean of its divisors is an integer number (808677135).

Almost surely, 2^16402876640 is an apocalyptic number.

16402876640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16402876640 is an abundant number, since it is smaller than the sum of its proper divisors (22413625840).

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

16402876640 is a wasteful number, since it uses less digits than its factorization.

16402876640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171195 (or 171187 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 16402876640 in words is "sixteen billion, four hundred two million, eight hundred seventy-six thousand, six hundred forty".