654213520068 has 24 divisors (see below), whose sum is σ = 1536607477440. Its totient is φ = 216626992800.

The previous prime is 654213520067. The next prime is 654213520159. The reversal of 654213520068 is 860025312456.

It is a super-3 number, since 3×654213520068³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (654213520067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180520683 + ... + 180524306.

It is an arithmetic number, because the mean of its divisors is an integer number (64025311560).

Almost surely, 2^654213520068 is an apocalyptic number.

It is an amenable number.

654213520068 is an abundant number, since it is smaller than the sum of its proper divisors (882393957372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654213520068 is a wasteful number, since it uses less digits than its factorization.

654213520068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361045147 (or 361045145 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 654213520068 in words is "six hundred fifty-four billion, two hundred thirteen million, five hundred twenty thousand, sixty-eight".