6617277745 has 32 divisors (see below), whose sum is σ = 8756826624. Its totient is φ = 4770662400.

The previous prime is 6617277731. The next prime is 6617277757. The reversal of 6617277745 is 5477727166.

It is not a de Polignac number, because 6617277745 - 2¹³ = 6617269553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6617277692 and 6617277701.

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, 468385 + ... + 482305.

It is an arithmetic number, because the mean of its divisors is an integer number (273650832).

Almost surely, 2^6617277745 is an apocalyptic number.

6617277745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6617277745 is a deficient number, since it is larger than the sum of its proper divisors (2139548879).

6617277745 is a wasteful number, since it uses less digits than its factorization.

6617277745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113.

The product of its digits is 3457440, while the sum is 52.

The square root of 6617277745 is about 81346.6517135155. The cubic root of 6617277745 is about 1877.4128576348.

The spelling of 6617277745 in words is "six billion, six hundred seventeen million, two hundred seventy-seven thousand, seven hundred forty-five".