964216664 has 8 divisors (see below), whose sum is σ = 1807906260. Its totient is φ = 482108328.

The previous prime is 964216663. The next prime is 964216709. The reversal of 964216664 is 466612469.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964216663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60263534 + ... + 60263549.

Almost surely, 2^964216664 is an apocalyptic number.

It is an amenable number.

964216664 is a deficient number, since it is larger than the sum of its proper divisors (843689596).

964216664 is a wasteful number, since it uses less digits than its factorization.

964216664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120527089 (or 120527085 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 964216664 is about 31051.8383352741. The cubic root of 964216664 is about 987.9270518242.

The spelling of 964216664 in words is "nine hundred sixty-four million, two hundred sixteen thousand, six hundred sixty-four".