3655400022560 has 768 divisors, whose sum is σ = 10991048785920. Its totient is φ = 1129863168000.

The previous prime is 3655400022559. The next prime is 3655400022569. The reversal of 3655400022560 is 652200045563.

It is not an unprimeable number, because it can be changed into a prime (3655400022569) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1460406269 + ... + 1460408771.

It is an arithmetic number, because the mean of its divisors is an integer number (14311261440).

Almost surely, 2^{3655400022560} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3655400022560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5495524392960).

3655400022560 is an abundant number, since it is smaller than the sum of its proper divisors (7335648763360).

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

3655400022560 is a wasteful number, since it uses less digits than its factorization.

3655400022560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 3655400022560 in words is "three trillion, six hundred fifty-five billion, four hundred million, twenty-two thousand, five hundred sixty".