220898138697 has 24 divisors (see below), whose sum is σ = 320609507400. Its totient is φ = 146557801728.

The previous prime is 220898138683. The next prime is 220898138711. The reversal of 220898138697 is 796831898022.

220898138697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220898138683) and next prime (220898138711).

It can be written as a sum of positive squares in 4 ways, for example, as 895864761 + 220002273936 = 29931^2 + 469044^2 .

It is not a de Polignac number, because 220898138697 - 2⁸ = 220898138441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220898138297) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4909579 + ... + 4954367.

It is an arithmetic number, because the mean of its divisors is an integer number (13358729475).

Almost surely, 2^220898138697 is an apocalyptic number.

It is an amenable number.

220898138697 is a deficient number, since it is larger than the sum of its proper divisors (99711368703).

220898138697 is a wasteful number, since it uses less digits than its factorization.

220898138697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47417 (or 47414 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 220898138697 in words is "two hundred twenty billion, eight hundred ninety-eight million, one hundred thirty-eight thousand, six hundred ninety-seven".