20577648098 has 12 divisors (see below), whose sum is σ = 35905896342. Its totient is φ = 8818992000.

The previous prime is 20577648097. The next prime is 20577648101. The reversal of 20577648098 is 89084677502.

It can be written as a sum of positive squares in only one way, i.e., 20570156929 + 7491169 = 143423^2 + 2737^2 .

It is not an unprimeable number, because it can be changed into a prime (20577648097) 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 5 ways as a sum of consecutive naturals, for example, 104987903 + ... + 104988098.

Almost surely, 2^20577648098 is an apocalyptic number.

20577648098 is a deficient number, since it is larger than the sum of its proper divisors (15328248244).

20577648098 is a wasteful number, since it uses less digits than its factorization.

20577648098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209976017 (or 209976010 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 20577648098 in words is "twenty billion, five hundred seventy-seven million, six hundred forty-eight thousand, ninety-eight".