6656354975901 has 8 divisors (see below), whose sum is σ = 8890683122464. Its totient is φ = 4429798406640.

The previous prime is 6656354975869. The next prime is 6656354975903. The reversal of 6656354975901 is 1095794536566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6656354975901 - 2⁵ = 6656354975869 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 (6656354975903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942892326 + ... + 1942895751.

It is an arithmetic number, because the mean of its divisors is an integer number (1111335390308).

Almost surely, 2^{6656354975901} is an apocalyptic number.

It is an amenable number.

6656354975901 is a deficient number, since it is larger than the sum of its proper divisors (2234328146563).

6656354975901 is a wasteful number, since it uses less digits than its factorization.

6656354975901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885788651.

The product of its (nonzero) digits is 183708000, while the sum is 66.

The spelling of 6656354975901 in words is "six trillion, six hundred fifty-six billion, three hundred fifty-four million, nine hundred seventy-five thousand, nine hundred one".