1345405432555 has 4 divisors (see below), whose sum is σ = 1614486519072. Its totient is φ = 1076324346040.

The previous prime is 1345405432531. The next prime is 1345405432583. The reversal of 1345405432555 is 5552345045431.

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

It is not a de Polignac number, because 1345405432555 - 2⁹ = 1345405432043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134540543251 + ... + 134540543260.

It is an arithmetic number, because the mean of its divisors is an integer number (403621629768).

Almost surely, 2^{1345405432555} is an apocalyptic number.

1345405432555 is a deficient number, since it is larger than the sum of its proper divisors (269081086517).

1345405432555 is an equidigital number, since it uses as much as digits as its factorization.

1345405432555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269081086516.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 1345405432555 in words is "one trillion, three hundred forty-five billion, four hundred five million, four hundred thirty-two thousand, five hundred fifty-five".