651100506166 has 16 divisors (see below), whose sum is σ = 1074865843728. Its totient is φ = 293335705600.

The previous prime is 651100506163. The next prime is 651100506169. The reversal of 651100506166 is 661605001156.

It is an interprime number because it is at equal distance from previous prime (651100506163) and next prime (651100506169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651100506163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130950955 + ... + 130955926.

It is an arithmetic number, because the mean of its divisors is an integer number (67179115233).

Almost surely, 2^651100506166 is an apocalyptic number.

651100506166 is a deficient number, since it is larger than the sum of its proper divisors (423765337562).

651100506166 is a wasteful number, since it uses less digits than its factorization.

651100506166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261907007.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 651100506166 in words is "six hundred fifty-one billion, one hundred million, five hundred six thousand, one hundred sixty-six".