3645422643550 has 48 divisors (see below), whose sum is σ = 6848060937120. Its totient is φ = 1443644058240.

The previous prime is 3645422643419. The next prime is 3645422643593. The reversal of 3645422643550 is 553462245463.

It is a super-3 number, since 3×3645422643550³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3645422643494 and 3645422643503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20578756 + ... + 20755144.

It is an arithmetic number, because the mean of its divisors is an integer number (142667936190).

Almost surely, 2^{3645422643550} is an apocalyptic number.

3645422643550 is a deficient number, since it is larger than the sum of its proper divisors (3202638293570).

3645422643550 is a wasteful number, since it uses less digits than its factorization.

3645422643550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180517 (or 180512 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 49.

The spelling of 3645422643550 in words is "three trillion, six hundred forty-five billion, four hundred twenty-two million, six hundred forty-three thousand, five hundred fifty".