20205506098 has 8 divisors (see below), whose sum is σ = 30312421020. Its totient is φ = 10101365760.

The previous prime is 20205506093. The next prime is 20205506131. The reversal of 20205506098 is 89060550202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16672749129 + 3532756969 = 129123^2 + 59437^2 .

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 (20205506093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675343 + ... + 704626.

Almost surely, 2^20205506098 is an apocalyptic number.

20205506098 is a deficient number, since it is larger than the sum of its proper divisors (10106914922).

20205506098 is a wasteful number, since it uses less digits than its factorization.

20205506098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387292.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 20205506098 in words is "twenty billion, two hundred five million, five hundred six thousand, ninety-eight".