4991165626705 has 16 divisors (see below), whose sum is σ = 5991675556608. Its totient is φ = 3991414960000.

The previous prime is 4991165626679. The next prime is 4991165626751. The reversal of 4991165626705 is 5076265611994.

It is a happy number.

It is not a de Polignac number, because 4991165626705 - 2²¹ = 4991163529553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170734440 + ... + 170763670.

It is an arithmetic number, because the mean of its divisors is an integer number (374479722288).

Almost surely, 2^{4991165626705} is an apocalyptic number.

It is an amenable number.

4991165626705 is a deficient number, since it is larger than the sum of its proper divisors (1000509929903).

4991165626705 is a wasteful number, since it uses less digits than its factorization.

4991165626705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41048.

The product of its (nonzero) digits is 24494400, while the sum is 61.

The spelling of 4991165626705 in words is "four trillion, nine hundred ninety-one billion, one hundred sixty-five million, six hundred twenty-six thousand, seven hundred five".