651165006506 has 16 divisors (see below), whose sum is σ = 1164816906624. Its totient is φ = 266937207504.

The previous prime is 651165006497. The next prime is 651165006509. The reversal of 651165006506 is 605600561156.

It is not an unprimeable number, because it can be changed into a prime (651165006509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011125465 + ... + 1011126108.

It is an arithmetic number, because the mean of its divisors is an integer number (72801056664).

Almost surely, 2^651165006506 is an apocalyptic number.

651165006506 is a deficient number, since it is larger than the sum of its proper divisors (513651900118).

651165006506 is a wasteful number, since it uses less digits than its factorization.

651165006506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022251605.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 651165006506 in words is "six hundred fifty-one billion, one hundred sixty-five million, six thousand, five hundred six".