1055778002605 has 24 divisors (see below), whose sum is σ = 1337663763072. Its totient is φ = 799845484896.

The previous prime is 1055778002581. The next prime is 1055778002677. The reversal of 1055778002605 is 5062008775501.

It is not a de Polignac number, because 1055778002605 - 2¹³ = 1055777994413 is a prime.

It is a super-2 number, since 2×1055778002605² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4401072 + ... + 4634758.

It is an arithmetic number, because the mean of its divisors is an integer number (55735990128).

Almost surely, 2^{1055778002605} is an apocalyptic number.

It is an amenable number.

1055778002605 is a deficient number, since it is larger than the sum of its proper divisors (281885760467).

1055778002605 is a wasteful number, since it uses less digits than its factorization.

1055778002605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236233 (or 236214 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 46.

The spelling of 1055778002605 in words is "one trillion, fifty-five billion, seven hundred seventy-eight million, two thousand, six hundred five".