654526420065 has 48 divisors (see below), whose sum is σ = 1331628549888. Its totient is φ = 291125259648.

The previous prime is 654526420061. The next prime is 654526420099. The reversal of 654526420065 is 560024625456.

654526420065 is a `hidden beast` number, since 6 + 545 + 2 + 6 + 42 + 0 + 0 + 65 = 666.

It is not a de Polignac number, because 654526420065 - 2² = 654526420061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 654526420065.

It is not an unprimeable number, because it can be changed into a prime (654526420061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28067557 + ... + 28090866.

It is an arithmetic number, because the mean of its divisors is an integer number (27742261456).

Almost surely, 2^654526420065 is an apocalyptic number.

It is an amenable number.

654526420065 is an abundant number, since it is smaller than the sum of its proper divisors (677102129823).

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

654526420065 is a wasteful number, since it uses less digits than its factorization.

654526420065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56158478 (or 56158475 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 654526420065 in words is "six hundred fifty-four billion, five hundred twenty-six million, four hundred twenty thousand, sixty-five".