20554201004 has 24 divisors (see below), whose sum is σ = 36115294656. Its totient is φ = 10235610000.

The previous prime is 20554200991. The next prime is 20554201021. The reversal of 20554201004 is 40010245502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384139 + ... + 1398909.

It is an arithmetic number, because the mean of its divisors is an integer number (1504803944).

Almost surely, 2^20554201004 is an apocalyptic number.

It is an amenable number.

20554201004 is a deficient number, since it is larger than the sum of its proper divisors (15561093652).

20554201004 is a wasteful number, since it uses less digits than its factorization.

20554201004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157 (or 16155 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20554201004 its reverse (40010245502), we get a palindrome (60564446506).

The spelling of 20554201004 in words is "twenty billion, five hundred fifty-four million, two hundred one thousand, four".