920816064 has 336 divisors, whose sum is σ = 3195279360. Its totient is φ = 248002560.

The previous prime is 920816051. The next prime is 920816119. The reversal of 920816064 is 460618029.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6624507 + ... + 6624645.

It is an arithmetic number, because the mean of its divisors is an integer number (9509760).

Almost surely, 2^920816064 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 920816064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1597639680).

920816064 is an abundant number, since it is smaller than the sum of its proper divisors (2274463296).

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

920816064 is a wasteful number, since it uses less digits than its factorization.

920816064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 920816064 is about 30344.9512110334. The cubic root of 920816064 is about 972.8763117868.

The spelling of 920816064 in words is "nine hundred twenty million, eight hundred sixteen thousand, sixty-four".