1555605606801 has 16 divisors (see below), whose sum is σ = 2079543720960. Its totient is φ = 1034372298960.

The previous prime is 1555605606791. The next prime is 1555605606803. The reversal of 1555605606801 is 1086065065551.

It is not a de Polignac number, because 1555605606801 - 2²⁵ = 1555572052369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1555605606803) 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, 1442830 + ... + 2278808.

It is an arithmetic number, because the mean of its divisors is an integer number (129971482560).

Almost surely, 2^{1555605606801} is an apocalyptic number.

It is an amenable number.

1555605606801 is a deficient number, since it is larger than the sum of its proper divisors (523938114159).

1555605606801 is an equidigital number, since it uses as much as digits as its factorization.

1555605606801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837596.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 1555605606801 in words is "one trillion, five hundred fifty-five billion, six hundred five million, six hundred six thousand, eight hundred one".