20005551004 has 12 divisors (see below), whose sum is σ = 35502809328. Its totient is φ = 9861891200.

The previous prime is 20005551001. The next prime is 20005551011. The reversal of 20005551004 is 40015550002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005551001) 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, 35220757 + ... + 35221324.

It is an arithmetic number, because the mean of its divisors is an integer number (2958567444).

Almost surely, 2^20005551004 is an apocalyptic number.

It is an amenable number.

20005551004 is a deficient number, since it is larger than the sum of its proper divisors (15497258324).

20005551004 is a wasteful number, since it uses less digits than its factorization.

20005551004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70442156 (or 70442154 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 20005551004 in words is "twenty billion, five million, five hundred fifty-one thousand, four".