20551023098 has 8 divisors (see below), whose sum is σ = 31331887860. Its totient is φ = 10107060480.

The previous prime is 20551023091. The next prime is 20551023113. The reversal of 20551023098 is 89032015502.

It can be written as a sum of positive squares in 2 ways, for example, as 19621565929 + 929457169 = 140077^2 + 30487^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20551023091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84225383 + ... + 84225626.

Almost surely, 2^20551023098 is an apocalyptic number.

20551023098 is a deficient number, since it is larger than the sum of its proper divisors (10780864762).

20551023098 is a wasteful number, since it uses less digits than its factorization.

20551023098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168451072.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 20551023098 in words is "twenty billion, five hundred fifty-one million, twenty-three thousand, ninety-eight".