220681548283877 has 8 divisors (see below), whose sum is σ = 232598639051640. Its totient is φ = 209051616329920.

The previous prime is 220681548283873. The next prime is 220681548283879. The reversal of 220681548283877 is 778382845186022.

It can be written as a sum of positive squares in 4 ways, for example, as 45465338354401 + 175216209929476 = 6742799^2 + 13236926^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220681548283877 - 2² = 220681548283873 is a prime.

It is a super-2 number, since 2×220681548283877² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220681548283877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220681548283873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71789701874 + ... + 71789704947.

It is an arithmetic number, because the mean of its divisors is an integer number (29074829881455).

Almost surely, 2^{220681548283877} is an apocalyptic number.

It is an amenable number.

220681548283877 is a deficient number, since it is larger than the sum of its proper divisors (11917090767763).

220681548283877 is a wasteful number, since it uses less digits than its factorization.

220681548283877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143579406903.

The product of its (nonzero) digits is 578027520, while the sum is 71.

The spelling of 220681548283877 in words is "two hundred twenty trillion, six hundred eighty-one billion, five hundred forty-eight million, two hundred eighty-three thousand, eight hundred seventy-seven".