383305216540 has 24 divisors (see below), whose sum is σ = 832697540640. Its totient is φ = 148035117888.

The previous prime is 383305216451. The next prime is 383305216571. The reversal of 383305216540 is 45612503383.

It is a junction number, because it is equal to n+sod(n) for n = 383305216493 and 383305216502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330434952 + ... + 330436111.

It is an arithmetic number, because the mean of its divisors is an integer number (34695730860).

Almost surely, 2^383305216540 is an apocalyptic number.

It is an amenable number.

383305216540 is an abundant number, since it is smaller than the sum of its proper divisors (449392324100).

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

383305216540 is a wasteful number, since it uses less digits than its factorization.

383305216540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660871101 (or 660871099 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 383305216540 in words is "three hundred eighty-three billion, three hundred five million, two hundred sixteen thousand, five hundred forty".