3555722880 has 256 divisors, whose sum is σ = 12650774400. Its totient is φ = 943865856.

The previous prime is 3555722867. The next prime is 3555722893. The reversal of 3555722880 is 882275553.

3555722880 is a `hidden beast` number, since 3 + 55 + 572 + 28 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (3555722867) and next prime (3555722893).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5995864 + ... + 5996456.

Almost surely, 2^3555722880 is an apocalyptic number.

3555722880 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 3555722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6325387200).

3555722880 is an abundant number, since it is smaller than the sum of its proper divisors (9095051520).

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

3555722880 is a wasteful number, since it uses less digits than its factorization.

3555722880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 3555722880 is about 59629.8824416081. The cubic root of 3555722880 is about 1526.3095986965.

The spelling of 3555722880 in words is "three billion, five hundred fifty-five million, seven hundred twenty-two thousand, eight hundred eighty".