946891566 has 32 divisors (see below), whose sum is σ = 2124645120. Its totient is φ = 312564312.

The previous prime is 946891549. The next prime is 946891607. The reversal of 946891566 is 665198649.

It is a happy number.

946891566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 79560 + ... + 90683.

It is an arithmetic number, because the mean of its divisors is an integer number (66395160).

Almost surely, 2^946891566 is an apocalyptic number.

946891566 is an abundant number, since it is smaller than the sum of its proper divisors (1177753554).

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

946891566 is a wasteful number, since it uses less digits than its factorization.

946891566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170357 (or 170351 counting only the distinct ones).

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

The square root of 946891566 is about 30771.6032406503. The cubic root of 946891566 is about 981.9742120010.

The spelling of 946891566 in words is "nine hundred forty-six million, eight hundred ninety-one thousand, five hundred sixty-six".