6656207171077 has 4 divisors (see below), whose sum is σ = 6685529669856. Its totient is φ = 6626884672300.

The previous prime is 6656207171071. The next prime is 6656207171093. The reversal of 6656207171077 is 7701717026566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6656207171077 - 2¹⁵ = 6656207138309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656207171071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14661249049 + ... + 14661249502.

It is an arithmetic number, because the mean of its divisors is an integer number (1671382417464).

Almost surely, 2^{6656207171077} is an apocalyptic number.

It is an amenable number.

6656207171077 is a deficient number, since it is larger than the sum of its proper divisors (29322498779).

6656207171077 is a wasteful number, since it uses less digits than its factorization.

6656207171077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29322498778.

The product of its (nonzero) digits is 5186160, while the sum is 55.

The spelling of 6656207171077 in words is "six trillion, six hundred fifty-six billion, two hundred seven million, one hundred seventy-one thousand, seventy-seven".