3565664451960 has 128 divisors (see below), whose sum is σ = 11677645385280. Its totient is φ = 865678675968.

The previous prime is 3565664451889. The next prime is 3565664451961. The reversal of 3565664451960 is 691544665653.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 3565664451894 and 3565664451903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3565664451961) 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 31 ways as a sum of consecutive naturals, for example, 15541479 + ... + 15769238.

Almost surely, 2^{3565664451960} is an apocalyptic number.

3565664451960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3565664451960 is an abundant number, since it is smaller than the sum of its proper divisors (8111980933320).

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

3565664451960 is a wasteful number, since it uses less digits than its factorization.

3565664451960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31310817 (or 31310813 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 60.

The spelling of 3565664451960 in words is "three trillion, five hundred sixty-five billion, six hundred sixty-four million, four hundred fifty-one thousand, nine hundred sixty".