145155333545543 has 4 divisors (see below), whose sum is σ = 145155997122360. Its totient is φ = 145154669968728.

The previous prime is 145155333545503. The next prime is 145155333545657. The reversal of 145155333545543 is 345545333551541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145155333545543 - 2¹⁶ = 145155333480007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145155333545503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331460180 + ... + 331897817.

It is an arithmetic number, because the mean of its divisors is an integer number (36288999280590).

Almost surely, 2^{145155333545543} is an apocalyptic number.

145155333545543 is a deficient number, since it is larger than the sum of its proper divisors (663576817).

145155333545543 is an equidigital number, since it uses as much as digits as its factorization.

145155333545543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663576816.

The product of its digits is 81000000, while the sum is 56.

The spelling of 145155333545543 in words is "one hundred forty-five trillion, one hundred fifty-five billion, three hundred thirty-three million, five hundred forty-five thousand, five hundred forty-three".