20100551001 has 16 divisors (see below), whose sum is σ = 29292645888. Its totient is φ = 12205267200.

The previous prime is 20100550961. The next prime is 20100551039. The reversal of 20100551001 is 10015500102.

It is not a de Polignac number, because 20100551001 - 2⁶ = 20100550937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20100551101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6355330 + ... + 6358491.

It is an arithmetic number, because the mean of its divisors is an integer number (1830790368).

Almost surely, 2^20100551001 is an apocalyptic number.

It is an amenable number.

20100551001 is a deficient number, since it is larger than the sum of its proper divisors (9192094887).

20100551001 is a wasteful number, since it uses less digits than its factorization.

20100551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713872.

The product of its (nonzero) digits is 50, while the sum is 15.

The spelling of 20100551001 in words is "twenty billion, one hundred million, five hundred fifty-one thousand, one".