155543427743 has 32 divisors (see below), whose sum is σ = 180342892800. Its totient is φ = 132666508800.

The previous prime is 155543427727. The next prime is 155543427761. The reversal of 155543427743 is 347724345551.

It is a cyclic number.

It is not a de Polignac number, because 155543427743 - 2⁴ = 155543427727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155543427691 and 155543427700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155543427643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43949468 + ... + 43953006.

It is an arithmetic number, because the mean of its divisors is an integer number (5635715400).

Almost surely, 2^155543427743 is an apocalyptic number.

155543427743 is a deficient number, since it is larger than the sum of its proper divisors (24799465057).

155543427743 is a wasteful number, since it uses less digits than its factorization.

155543427743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its digits is 7056000, while the sum is 50.

The spelling of 155543427743 in words is "one hundred fifty-five billion, five hundred forty-three million, four hundred twenty-seven thousand, seven hundred forty-three".