6549455745 has 32 divisors (see below), whose sum is σ = 13306832640. Its totient is φ = 2994036480.

The previous prime is 6549455639. The next prime is 6549455753. The reversal of 6549455745 is 5475549456.

6549455745 is a `hidden beast` number, since 6 + 5 + 49 + 4 + 557 + 45 = 666.

It is not a de Polignac number, because 6549455745 - 2⁹ = 6549455233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6549455691 and 6549455700.

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, 3464376 + ... + 3466265.

It is an arithmetic number, because the mean of its divisors is an integer number (415838520).

Almost surely, 2^6549455745 is an apocalyptic number.

It is an amenable number.

6549455745 is an abundant number, since it is smaller than the sum of its proper divisors (6757376895).

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

6549455745 is a wasteful number, since it uses less digits than its factorization.

6549455745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930662 (or 6930656 counting only the distinct ones).

The product of its digits is 15120000, while the sum is 54.

The square root of 6549455745 is about 80928.7077927233. The cubic root of 6549455745 is about 1870.9768071981.

The spelling of 6549455745 in words is "six billion, five hundred forty-nine million, four hundred fifty-five thousand, seven hundred forty-five".