206251030656951 has 8 divisors (see below), whose sum is σ = 314287284810624. Its totient is φ = 117857731803960.

The previous prime is 206251030656947. The next prime is 206251030656953. The reversal of 206251030656951 is 159656030152602.

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

It is not a de Polignac number, because 206251030656951 - 2² = 206251030656947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206251030656894 and 206251030656903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206251030656953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4910738825145 + ... + 4910738825186.

It is an arithmetic number, because the mean of its divisors is an integer number (39285910601328).

Almost surely, 2^{206251030656951} is an apocalyptic number.

206251030656951 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206251030656951 is a deficient number, since it is larger than the sum of its proper divisors (108036254153673).

206251030656951 is an equidigital number, since it uses as much as digits as its factorization.

206251030656951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9821477650341.

The product of its (nonzero) digits is 2916000, while the sum is 51.

The spelling of 206251030656951 in words is "two hundred six trillion, two hundred fifty-one billion, thirty million, six hundred fifty-six thousand, nine hundred fifty-one".