651006776206 has 4 divisors (see below), whose sum is σ = 976510164312. Its totient is φ = 325503388102.

The previous prime is 651006776171. The next prime is 651006776219. The reversal of 651006776206 is 602677600156.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×651006776206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 162751694050 + ... + 162751694053.

It is an arithmetic number, because the mean of its divisors is an integer number (244127541078).

Almost surely, 2^651006776206 is an apocalyptic number.

651006776206 is a deficient number, since it is larger than the sum of its proper divisors (325503388106).

651006776206 is a wasteful number, since it uses less digits than its factorization.

651006776206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325503388105.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 651006776206 in words is "six hundred fifty-one billion, six million, seven hundred seventy-six thousand, two hundred six".