7371320816820 has 48 divisors (see below), whose sum is σ = 20645872853760. Its totient is φ = 1965097497216.

The previous prime is 7371320816819. The next prime is 7371320816921. The reversal of 7371320816820 is 286180231737.

It is a self number, because there is not a number n which added to its sum of digits gives 7371320816820.

It is a congruent number.

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, 18174435 + ... + 18575594.

It is an arithmetic number, because the mean of its divisors is an integer number (430122351120).

Almost surely, 2^{7371320816820} is an apocalyptic number.

It is an amenable number.

7371320816820 is an abundant number, since it is smaller than the sum of its proper divisors (13274552036940).

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

7371320816820 is a wasteful number, since it uses less digits than its factorization.

7371320816820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36753384 (or 36753382 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 7371320816820 in words is "seven trillion, three hundred seventy-one billion, three hundred twenty million, eight hundred sixteen thousand, eight hundred twenty".