6980321901564 has 144 divisors (see below), whose sum is σ = 19871456317440. Its totient is φ = 2046833712000.

The previous prime is 6980321901517. The next prime is 6980321901599. The reversal of 6980321901564 is 4651091230896.

6980321901564 is a `hidden beast` number, since 6 + 9 + 80 + 321 + 90 + 156 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6980321901564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209031309 + ... + 209064699.

Almost surely, 2^{6980321901564} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6980321901564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9935728158720).

6980321901564 is an abundant number, since it is smaller than the sum of its proper divisors (12891134415876).

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

6980321901564 is a wasteful number, since it uses less digits than its factorization.

6980321901564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50472 (or 50467 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 6980321901564 in words is "six trillion, nine hundred eighty billion, three hundred twenty-one million, nine hundred one thousand, five hundred sixty-four".