1601260555055 has 16 divisors (see below), whose sum is σ = 2196388293120. Its totient is φ = 1097820328992.

The previous prime is 1601260555051. The next prime is 1601260555057. The reversal of 1601260555055 is 5505550621061.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1601260555055 - 2² = 1601260555051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601260555051) 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, 3685229 + ... + 4096758.

It is an arithmetic number, because the mean of its divisors is an integer number (137274268320).

Almost surely, 2^{1601260555055} is an apocalyptic number.

1601260555055 is a deficient number, since it is larger than the sum of its proper divisors (595127738065).

1601260555055 is an equidigital number, since it uses as much as digits as its factorization.

1601260555055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7787878.

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 1601260555055 in words is "one trillion, six hundred one billion, two hundred sixty million, five hundred fifty-five thousand, fifty-five".