6617540377 has 16 divisors (see below), whose sum is σ = 8011681920. Its totient is φ = 5335918848.

The previous prime is 6617540351. The next prime is 6617540383. The reversal of 6617540377 is 7730457166.

6617540377 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6617540377 - 2¹⁹ = 6617016089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6617540177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253774 + ... + 278632.

It is an arithmetic number, because the mean of its divisors is an integer number (500730120).

Almost surely, 2^6617540377 is an apocalyptic number.

It is an amenable number.

6617540377 is a deficient number, since it is larger than the sum of its proper divisors (1394141543).

6617540377 is a wasteful number, since it uses less digits than its factorization.

6617540377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27120.

The product of its (nonzero) digits is 740880, while the sum is 46.

The square root of 6617540377 is about 81348.2659741435. The cubic root of 6617540377 is about 1877.4376947450.

The spelling of 6617540377 in words is "six billion, six hundred seventeen million, five hundred forty thousand, three hundred seventy-seven".