210775530051 has 16 divisors (see below), whose sum is σ = 312405841920. Its totient is φ = 140451411240.

The previous prime is 210775530041. The next prime is 210775530089. The reversal of 210775530051 is 150035577012.

It is a happy number.

210775530051 is a `hidden beast` number, since 2 + 1 + 0 + 7 + 75 + 530 + 0 + 51 = 666.

It is not a de Polignac number, because 210775530051 - 2⁵ = 210775530019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210775529988 and 210775530015.

It is not an unprimeable number, because it can be changed into a prime (210775530041) 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 15 ways as a sum of consecutive naturals, for example, 1763535 + ... + 1879256.

It is an arithmetic number, because the mean of its divisors is an integer number (19525365120).

Almost surely, 2^210775530051 is an apocalyptic number.

210775530051 is a deficient number, since it is larger than the sum of its proper divisors (101630311869).

210775530051 is a wasteful number, since it uses less digits than its factorization.

210775530051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644943 (or 3644937 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The spelling of 210775530051 in words is "two hundred ten billion, seven hundred seventy-five million, five hundred thirty thousand, fifty-one".