6820922064 has 160 divisors (see below), whose sum is σ = 19926724608. Its totient is φ = 1991808000.

The previous prime is 6820922057. The next prime is 6820922099. The reversal of 6820922064 is 4602290286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4598667 + ... + 4600149.

Almost surely, 2^6820922064 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 6820922064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9963362304).

6820922064 is an abundant number, since it is smaller than the sum of its proper divisors (13105802544).

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

6820922064 is a wasteful number, since it uses less digits than its factorization.

6820922064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 6820922064 is about 82588.8737300612. The cubic root of 6820922064 is about 1896.4775052894.

The spelling of 6820922064 in words is "six billion, eight hundred twenty million, nine hundred twenty-two thousand, sixty-four".