2005701615557 has 4 divisors (see below), whose sum is σ = 2025174446880. Its totient is φ = 1986228784236.

The previous prime is 2005701615529. The next prime is 2005701615569. The reversal of 2005701615557 is 7555161075002.

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 2005701615557 - 2⁶ = 2005701615493 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 (2005701635557) 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, 9736415507 + ... + 9736415712.

It is an arithmetic number, because the mean of its divisors is an integer number (506293611720).

Almost surely, 2^{2005701615557} is an apocalyptic number.

It is an amenable number.

2005701615557 is a deficient number, since it is larger than the sum of its proper divisors (19472831323).

2005701615557 is a wasteful number, since it uses less digits than its factorization.

2005701615557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19472831322.

The product of its (nonzero) digits is 367500, while the sum is 44.

The spelling of 2005701615557 in words is "two trillion, five billion, seven hundred one million, six hundred fifteen thousand, five hundred fifty-seven".