16321622577040 has 80 divisors (see below), whose sum is σ = 42015444321600. Its totient is φ = 5846551349760.

The previous prime is 16321622576989. The next prime is 16321622577079. The reversal of 16321622577040 is 4077522612361.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138353715 + ... + 138471634.

It is an arithmetic number, because the mean of its divisors is an integer number (525193054020).

Almost surely, 2^{16321622577040} is an apocalyptic number.

16321622577040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16321622577040 is an abundant number, since it is smaller than the sum of its proper divisors (25693821744560).

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

16321622577040 is a wasteful number, since it uses less digits than its factorization.

16321622577040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276825440 (or 276825434 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 16321622577040 in words is "sixteen trillion, three hundred twenty-one billion, six hundred twenty-two million, five hundred seventy-seven thousand, forty".