1650515116664 has 16 divisors (see below), whose sum is σ = 3138303391920. Its totient is φ = 813634212160.

The previous prime is 1650515116661. The next prime is 1650515116669. The reversal of 1650515116664 is 4666115150561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650515116661) 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, 1452917669 + ... + 1452918804.

It is an arithmetic number, because the mean of its divisors is an integer number (196143961995).

Almost surely, 2^{1650515116664} is an apocalyptic number.

It is an amenable number.

1650515116664 is a deficient number, since it is larger than the sum of its proper divisors (1487788275256).

1650515116664 is a wasteful number, since it uses less digits than its factorization.

1650515116664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905836550 (or 2905836546 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 1650515116664 in words is "one trillion, six hundred fifty billion, five hundred fifteen million, one hundred sixteen thousand, six hundred sixty-four".