3554255221560 has 256 divisors, whose sum is σ = 12379694745600. Its totient is φ = 905341003776.

The previous prime is 3554255221553. The next prime is 3554255221579. The reversal of 3554255221560 is 651225524553.

3554255221560 is a `hidden beast` number, since 3 + 5 + 5 + 42 + 552 + 2 + 1 + 56 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17960272 + ... + 18157088.

It is an arithmetic number, because the mean of its divisors is an integer number (48358182600).

Almost surely, 2^{3554255221560} is an apocalyptic number.

3554255221560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3554255221560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6189847372800).

3554255221560 is an abundant number, since it is smaller than the sum of its proper divisors (8825439524040).

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

3554255221560 is a wasteful number, since it uses less digits than its factorization.

3554255221560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197587 (or 197577 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 3554255221560 in words is "three trillion, five hundred fifty-four billion, two hundred fifty-five million, two hundred twenty-one thousand, five hundred sixty".