3644606455552 has 36 divisors (see below), whose sum is σ = 7444161681880. Its totient is φ = 1779924077568.

The previous prime is 3644606455499. The next prime is 3644606455571. The reversal of 3644606455552 is 2555546064463.

It is a junction number, because it is equal to n+sod(n) for n = 3644606455493 and 3644606455502.

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, 165532527 + ... + 165554542.

Almost surely, 2^{3644606455552} is an apocalyptic number.

3644606455552 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3644606455552 is an abundant number, since it is smaller than the sum of its proper divisors (3799555226328).

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

3644606455552 is an equidigital number, since it uses as much as digits as its factorization.

3644606455552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331087128 (or 331087114 counting only the distinct ones).

The product of its (nonzero) digits is 51840000, while the sum is 55.

The spelling of 3644606455552 in words is "three trillion, six hundred forty-four billion, six hundred six million, four hundred fifty-five thousand, five hundred fifty-two".