5551858368 has 896 divisors, whose sum is σ = 21945600000. Its totient is φ = 1365590016.

The previous prime is 5551858357. The next prime is 5551858369. The reversal of 5551858368 is 8638581555.

It is a happy number.

5551858368 is a `hidden beast` number, since 5 + 5 + 51 + 8 + 583 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5551858369) 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, 191443378 + ... + 191443406.

Almost surely, 2^5551858368 is an apocalyptic number.

5551858368 is a gapful number since it is divisible by the number (58) 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 5551858368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10972800000).

5551858368 is an abundant number, since it is smaller than the sum of its proper divisors (16393741632).

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

5551858368 is a wasteful number, since it uses less digits than its factorization.

5551858368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 77 counting only the distinct ones).

The product of its digits is 5760000, while the sum is 54.

The square root of 5551858368 is about 74510.7936342111. The cubic root of 5551858368 is about 1770.7046433142.

The spelling of 5551858368 in words is "five billion, five hundred fifty-one million, eight hundred fifty-eight thousand, three hundred sixty-eight".