2557011720801 has 4 divisors (see below), whose sum is σ = 3409348961072. Its totient is φ = 1704674480532.

The previous prime is 2557011720793. The next prime is 2557011720803. The reversal of 2557011720801 is 1080271107552.

2557011720801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2557011720801 - 2³ = 2557011720793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557011720801.

It is not an unprimeable number, because it can be changed into a prime (2557011720803) 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, 426168620131 + ... + 426168620136.

It is an arithmetic number, because the mean of its divisors is an integer number (852337240268).

Almost surely, 2^{2557011720801} is an apocalyptic number.

It is an amenable number.

2557011720801 is a deficient number, since it is larger than the sum of its proper divisors (852337240271).

2557011720801 is an equidigital number, since it uses as much as digits as its factorization.

2557011720801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852337240270.

The product of its (nonzero) digits is 39200, while the sum is 39.

The spelling of 2557011720801 in words is "two trillion, five hundred fifty-seven billion, eleven million, seven hundred twenty thousand, eight hundred one".