10420205551 has 8 divisors (see below), whose sum is σ = 11909479424. Its totient is φ = 8931099960.

The previous prime is 10420205533. The next prime is 10420205561. The reversal of 10420205551 is 15550202401.

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

It is a cyclic number.

It is not a de Polignac number, because 10420205551 - 2⁵ = 10420205519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420205561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147706 + ... + 206536.

It is an arithmetic number, because the mean of its divisors is an integer number (1488684928).

Almost surely, 2^10420205551 is an apocalyptic number.

10420205551 is a deficient number, since it is larger than the sum of its proper divisors (1489273873).

10420205551 is an equidigital number, since it uses as much as digits as its factorization.

10420205551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84141.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 10420205551 its reverse (15550202401), we get a palindrome (25970407952).

The spelling of 10420205551 in words is "ten billion, four hundred twenty million, two hundred five thousand, five hundred fifty-one".