946189664 has 72 divisors (see below), whose sum is σ = 2247064848. Its totient is φ = 384134400.

The previous prime is 946189661. The next prime is 946189681. The reversal of 946189664 is 466981649.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946189661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75014 + ... + 86714.

It is an arithmetic number, because the mean of its divisors is an integer number (31209234).

Almost surely, 2^946189664 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 946189664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123532424).

946189664 is an abundant number, since it is smaller than the sum of its proper divisors (1300875184).

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

946189664 is a wasteful number, since it uses less digits than its factorization.

946189664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756 (or 11729 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 946189664 is about 30760.1960982046. The cubic root of 946189664 is about 981.7315161229.

The spelling of 946189664 in words is "nine hundred forty-six million, one hundred eighty-nine thousand, six hundred sixty-four".