155043642345 has 8 divisors (see below), whose sum is σ = 248069827776. Its totient is φ = 82689942576.

The previous prime is 155043642323. The next prime is 155043642349. The reversal of 155043642345 is 543246340551.

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

It is not a de Polignac number, because 155043642345 - 2⁷ = 155043642217 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155043642297 and 155043642306.

It is not an unprimeable number, because it can be changed into a prime (155043642349) 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, 5168121397 + ... + 5168121426.

It is an arithmetic number, because the mean of its divisors is an integer number (31008728472).

Almost surely, 2^155043642345 is an apocalyptic number.

155043642345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155043642345 is a deficient number, since it is larger than the sum of its proper divisors (93026185431).

155043642345 is a wasteful number, since it uses less digits than its factorization.

155043642345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336242831.

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 155043642345 its reverse (543246340551), we get a palindrome (698289982896).

The spelling of 155043642345 in words is "one hundred fifty-five billion, forty-three million, six hundred forty-two thousand, three hundred forty-five".