1055342015555 has 4 divisors (see below), whose sum is σ = 1266410418672. Its totient is φ = 844273612440.

The previous prime is 1055342015551. The next prime is 1055342015587. The reversal of 1055342015555 is 5555102435501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1055342015555 - 2² = 1055342015551 is a prime.

It is a super-2 number, since 2×1055342015555² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055342015551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105534201551 + ... + 105534201560.

It is an arithmetic number, because the mean of its divisors is an integer number (316602604668).

Almost surely, 2^{1055342015555} is an apocalyptic number.

1055342015555 is a deficient number, since it is larger than the sum of its proper divisors (211068403117).

1055342015555 is an equidigital number, since it uses as much as digits as its factorization.

1055342015555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211068403116.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 1055342015555 in words is "one trillion, fifty-five billion, three hundred forty-two million, fifteen thousand, five hundred fifty-five".