654512064 has 28 divisors (see below), whose sum is σ = 1731730344. Its totient is φ = 218170624.

The previous prime is 654512039. The next prime is 654512071. The reversal of 654512064 is 460215456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704267 + ... + 1704650.

Almost surely, 2^654512064 is an apocalyptic number.

654512064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

654512064 is an abundant number, since it is smaller than the sum of its proper divisors (1077218280).

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

654512064 is a wasteful number, since it uses less digits than its factorization.

654512064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408932 (or 3408922 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 654512064 is about 25583.4333895980. The cubic root of 654512064 is about 868.2388577217.

The spelling of 654512064 in words is "six hundred fifty-four million, five hundred twelve thousand, sixty-four".