20854856585632 has 12 divisors (see below), whose sum is σ = 41057998903026. Its totient is φ = 10427428292800.

The previous prime is 20854856585581. The next prime is 20854856585657. The reversal of 20854856585632 is 23658565845802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17646014912656 + 3208841672976 = 4200716^2 + 1791324^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325857134119 + ... + 325857134182.

Almost surely, 2^{20854856585632} is an apocalyptic number.

It is an amenable number.

20854856585632 is a deficient number, since it is larger than the sum of its proper divisors (20203142317394).

20854856585632 is an equidigital number, since it uses as much as digits as its factorization.

20854856585632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651714268311 (or 651714268303 counting only the distinct ones).

The product of its (nonzero) digits is 552960000, while the sum is 67.

The spelling of 20854856585632 in words is "twenty trillion, eight hundred fifty-four billion, eight hundred fifty-six million, five hundred eighty-five thousand, six hundred thirty-two".