155434230643 has 8 divisors (see below), whose sum is σ = 155610224640. Its totient is φ = 155258289480.

The previous prime is 155434230641. The next prime is 155434230673. The reversal of 155434230643 is 346032434551.

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 155434230643 - 2¹ = 155434230641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155434230596 and 155434230605.

It is not an unprimeable number, because it can be changed into a prime (155434230641) 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, 9666096 + ... + 9682162.

It is an arithmetic number, because the mean of its divisors is an integer number (19451278080).

Almost surely, 2^155434230643 is an apocalyptic number.

155434230643 is a deficient number, since it is larger than the sum of its proper divisors (175993997).

155434230643 is a wasteful number, since it uses less digits than its factorization.

155434230643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26417.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 155434230643 in words is "one hundred fifty-five billion, four hundred thirty-four million, two hundred thirty thousand, six hundred forty-three".