916568805376 has 117 divisors (see below), whose sum is σ = 2133163282509. Its totient is φ = 392631386112.

The previous prime is 916568805371. The next prime is 916568805391. The reversal of 916568805376 is 673508865619.

The square root of 916568805376 is 957376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41550745600 + 875018059776 = 203840^2 + 935424^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (916568805371) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 428903380 + ... + 428905516.

Almost surely, 2^916568805376 is an apocalyptic number.

916568805376 is the 957376-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 916568805376

916568805376 is an abundant number, since it is smaller than the sum of its proper divisors (1216594477133).

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

916568805376 is an frugal number, since it uses more digits than its factorization.

916568805376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

Multiplying 916568805376 by its sum of digits (64), we get a square (58660403544064 = 7659008²).

916568805376 divided by its sum of digits (64) gives a square (14321387584 = 119672²).

The spelling of 916568805376 in words is "nine hundred sixteen billion, five hundred sixty-eight million, eight hundred five thousand, three hundred seventy-six".