2556338065079 has 8 divisors (see below), whose sum is σ = 2644509708000. Its totient is φ = 2468167892512.

The previous prime is 2556338065067. The next prime is 2556338065081. The reversal of 2556338065079 is 9705608336552.

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 2556338065079 - 2⁴ = 2556338065063 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 (2556338065019) 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, 4083062 + ... + 4667340.

It is an arithmetic number, because the mean of its divisors is an integer number (330563713500).

Almost surely, 2^{2556338065079} is an apocalyptic number.

2556338065079 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2556338065079 is a deficient number, since it is larger than the sum of its proper divisors (88171642921).

2556338065079 is a wasteful number, since it uses less digits than its factorization.

2556338065079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735177.

The product of its (nonzero) digits is 40824000, while the sum is 59.

The spelling of 2556338065079 in words is "two trillion, five hundred fifty-six billion, three hundred thirty-eight million, sixty-five thousand, seventy-nine".