649615516946 has 8 divisors (see below), whose sum is σ = 1063007209584. Its totient is φ = 295279780420.

The previous prime is 649615516931. The next prime is 649615516987.

649615516946 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14763989000 + ... + 14763989043.

It is an arithmetic number, because the mean of its divisors is an integer number (132875901198).

Almost surely, 2^649615516946 is an apocalyptic number.

649615516946 is a deficient number, since it is larger than the sum of its proper divisors (413391692638).

649615516946 is a wasteful number, since it uses less digits than its factorization.

649615516946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29527978056.

The product of its digits is 41990400, while the sum is 62.

The spelling of 649615516946 in words is "six hundred forty-nine billion, six hundred fifteen million, five hundred sixteen thousand, nine hundred forty-six".