2656738474159 has 8 divisors (see below), whose sum is σ = 3312297318528. Its totient is φ = 2070185823960.

The previous prime is 2656738474127. The next prime is 2656738474171. The reversal of 2656738474159 is 9514748376562.

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

It is a cyclic number.

It is not a de Polignac number, because 2656738474159 - 2⁵ = 2656738474127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2656738474094 and 2656738474103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656738474259) 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, 17251548457 + ... + 17251548610.

It is an arithmetic number, because the mean of its divisors is an integer number (414037164816).

Almost surely, 2^{2656738474159} is an apocalyptic number.

2656738474159 is a deficient number, since it is larger than the sum of its proper divisors (655558844369).

2656738474159 is a wasteful number, since it uses less digits than its factorization.

2656738474159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34503097085.

The product of its digits is 304819200, while the sum is 67.

The spelling of 2656738474159 in words is "two trillion, six hundred fifty-six billion, seven hundred thirty-eight million, four hundred seventy-four thousand, one hundred fifty-nine".