1057713663655 has 16 divisors (see below), whose sum is σ = 1384961452704. Its totient is φ = 769069572480.

The previous prime is 1057713663653. The next prime is 1057713663673. The reversal of 1057713663655 is 5563663177501.

It is a happy number.

It is not a de Polignac number, because 1057713663655 - 2¹ = 1057713663653 is a prime.

It is a super-2 number, since 2×1057713663655² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057713663596 and 1057713663605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057713663653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1967292 + ... + 2446561.

It is an arithmetic number, because the mean of its divisors is an integer number (86560090794).

Almost surely, 2^{1057713663655} is an apocalyptic number.

1057713663655 is a deficient number, since it is larger than the sum of its proper divisors (327247789049).

1057713663655 is a wasteful number, since it uses less digits than its factorization.

1057713663655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418226.

The product of its (nonzero) digits is 11907000, while the sum is 55.

The spelling of 1057713663655 in words is "one trillion, fifty-seven billion, seven hundred thirteen million, six hundred sixty-three thousand, six hundred fifty-five".