6654355551 has 32 divisors (see below), whose sum is σ = 10079569920. Its totient is φ = 4336885152.

The previous prime is 6654355531. The next prime is 6654355583. The reversal of 6654355551 is 1555534566.

6654355551 is a `hidden beast` number, since 6 + 6 + 5 + 43 + 55 + 551 = 666.

It is not a de Polignac number, because 6654355551 - 2²² = 6650161247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6654355497 and 6654355506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654355501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1346481 + ... + 1351413.

It is an arithmetic number, because the mean of its divisors is an integer number (314986560).

Almost surely, 2^6654355551 is an apocalyptic number.

6654355551 is a deficient number, since it is larger than the sum of its proper divisors (3425214369).

6654355551 is a wasteful number, since it uses less digits than its factorization.

6654355551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052 (or 6046 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The square root of 6654355551 is about 81574.2333767226. The cubic root of 6654355551 is about 1880.9128235558.

The spelling of 6654355551 in words is "six billion, six hundred fifty-four million, three hundred fifty-five thousand, five hundred fifty-one".