10202105551 has 8 divisors (see below), whose sum is σ = 11145873024. Its totient is φ = 9261055320.

The previous prime is 10202105527. The next prime is 10202105581. The reversal of 10202105551 is 15550120201.

It is a happy number.

10202105551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-10202105551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202105581) 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 7 ways as a sum of consecutive naturals, for example, 671451 + ... + 686476.

It is an arithmetic number, because the mean of its divisors is an integer number (1393234128).

Almost surely, 2^10202105551 is an apocalyptic number.

10202105551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10202105551 is a deficient number, since it is larger than the sum of its proper divisors (943767473).

10202105551 is a wasteful number, since it uses less digits than its factorization.

10202105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358621.

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 10202105551 its reverse (15550120201), we get a palindrome (25752225752).

The spelling of 10202105551 in words is "ten billion, two hundred two million, one hundred five thousand, five hundred fifty-one".