1964456164 has 12 divisors (see below), whose sum is σ = 3750325488. Its totient is φ = 892934600.

The previous prime is 1964456129. The next prime is 1964456167. The reversal of 1964456164 is 4616544691.

It is not an unprimeable number, because it can be changed into a prime (1964456167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22323322 + ... + 22323409.

It is an arithmetic number, because the mean of its divisors is an integer number (312527124).

Almost surely, 2^1964456164 is an apocalyptic number.

It is an amenable number.

1964456164 is a deficient number, since it is larger than the sum of its proper divisors (1785869324).

1964456164 is a wasteful number, since it uses less digits than its factorization.

1964456164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44646746 (or 44646744 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 1964456164 is about 44322.1859117982. The cubic root of 1964456164 is about 1252.4126552663.

The spelling of 1964456164 in words is "one billion, nine hundred sixty-four million, four hundred fifty-six thousand, one hundred sixty-four".