1556055050001 has 16 divisors (see below), whose sum is σ = 2079186686400. Its totient is φ = 1035148197888.

The previous prime is 1556055049973. The next prime is 1556055050059. The reversal of 1556055050001 is 1000505506551.

It is not a de Polignac number, because 1556055050001 - 2⁶ = 1556055049937 is a prime.

It is a super-2 number, since 2×1556055050001² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1556055050701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4073745 + ... + 4439313.

It is an arithmetic number, because the mean of its divisors is an integer number (129949167900).

Almost surely, 2^{1556055050001} is an apocalyptic number.

It is an amenable number.

1556055050001 is a deficient number, since it is larger than the sum of its proper divisors (523131636399).

1556055050001 is a wasteful number, since it uses less digits than its factorization.

1556055050001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368608.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 1556055050001 in words is "one trillion, five hundred fifty-six billion, fifty-five million, fifty thousand, one".