909645464655 has 16 divisors (see below), whose sum is σ = 1617147492960. Its totient is φ = 485144247744.

The previous prime is 909645464621. The next prime is 909645464659. The reversal of 909645464655 is 556464546909.

909645464655 is a `hidden beast` number, since 9 + 0 + 96 + 45 + 46 + 465 + 5 = 666.

It is not a de Polignac number, because 909645464655 - 2⁷ = 909645464527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 909645464592 and 909645464601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909645464659) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3369057142 + ... + 3369057411.

It is an arithmetic number, because the mean of its divisors is an integer number (101071718310).

Almost surely, 2^909645464655 is an apocalyptic number.

909645464655 is a deficient number, since it is larger than the sum of its proper divisors (707502028305).

909645464655 is a wasteful number, since it uses less digits than its factorization.

909645464655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738114567 (or 6738114561 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 63.

The spelling of 909645464655 in words is "nine hundred nine billion, six hundred forty-five million, four hundred sixty-four thousand, six hundred fifty-five".