4651661166656 has 84 divisors (see below), whose sum is σ = 10762146014400. Its totient is φ = 1989027323136.

The previous prime is 4651661166643. The next prime is 4651661166673. The reversal of 4651661166656 is 6566611661564.

It is a junction number, because it is equal to n+sod(n) for n = 4651661166595 and 4651661166604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312716 + ... + 3066123.

Almost surely, 2^{4651661166656} is an apocalyptic number.

It is an amenable number.

4651661166656 is an abundant number, since it is smaller than the sum of its proper divisors (6110484847744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4651661166656 is a wasteful number, since it uses less digits than its factorization.

4651661166656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379304 (or 3379287 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 59.

The spelling of 4651661166656 in words is "four trillion, six hundred fifty-one billion, six hundred sixty-one million, one hundred sixty-six thousand, six hundred fifty-six".