16064651464 has 8 divisors (see below), whose sum is σ = 30121221510. Its totient is φ = 8032325728.

The previous prime is 16064651429. The next prime is 16064651467. The reversal of 16064651464 is 46415646061.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15999720100 + 64931364 = 126490^2 + 8058^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16064651464.

It is not an unprimeable number, because it can be changed into a prime (16064651467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004040709 + ... + 1004040724.

Almost surely, 2^16064651464 is an apocalyptic number.

It is an amenable number.

16064651464 is a deficient number, since it is larger than the sum of its proper divisors (14056570046).

16064651464 is a wasteful number, since it uses less digits than its factorization.

16064651464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008081439 (or 2008081435 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 16064651464 in words is "sixteen billion, sixty-four million, six hundred fifty-one thousand, four hundred sixty-four".