2155434435433 has 8 divisors (see below), whose sum is σ = 2259234851328. Its totient is φ = 2052474509184.

The previous prime is 2155434435421. The next prime is 2155434435463. The reversal of 2155434435433 is 3345344345512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155434435433 - 2¹³ = 2155434427241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155434435463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210117160 + ... + 210127417.

It is an arithmetic number, because the mean of its divisors is an integer number (282404356416).

Almost surely, 2^{2155434435433} is an apocalyptic number.

2155434435433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2155434435433 is a deficient number, since it is larger than the sum of its proper divisors (103800415895).

2155434435433 is a wasteful number, since it uses less digits than its factorization.

2155434435433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420244823.

The product of its digits is 5184000, while the sum is 46.

The spelling of 2155434435433 in words is "two trillion, one hundred fifty-five billion, four hundred thirty-four million, four hundred thirty-five thousand, four hundred thirty-three".