4651661116515 has 128 divisors (see below), whose sum is σ = 8764101918720. Its totient is φ = 2062936512000.

The previous prime is 4651661116507. The next prime is 4651661116541. The reversal of 4651661116515 is 5156111661564.

It is not a de Polignac number, because 4651661116515 - 2³ = 4651661116507 is a prime.

It is a super-2 number, since 2×4651661116515² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 531796372 + ... + 531805118.

It is an arithmetic number, because the mean of its divisors is an integer number (68469546240).

Almost surely, 2^{4651661116515} is an apocalyptic number.

4651661116515 is a deficient number, since it is larger than the sum of its proper divisors (4112440802205).

4651661116515 is a wasteful number, since it uses less digits than its factorization.

4651661116515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953.

The product of its digits is 648000, while the sum is 48.

It can be divided in two parts, 4651 and 661116515, that added together give a palindrome (661121166).

The spelling of 4651661116515 in words is "four trillion, six hundred fifty-one billion, six hundred sixty-one million, one hundred sixteen thousand, five hundred fifteen".