155432224001 has 4 divisors (see below), whose sum is σ = 155440190400. Its totient is φ = 155424257604.

The previous prime is 155432223959. The next prime is 155432224007. The reversal of 155432224001 is 100422234551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100422234551 = 31 ⋅3239426921.

It is a cyclic number.

It is not a de Polignac number, because 155432224001 - 2⁶ = 155432223937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155432224007) 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, 3953861 + ... + 3992978.

It is an arithmetic number, because the mean of its divisors is an integer number (38860047600).

Almost surely, 2^155432224001 is an apocalyptic number.

It is an amenable number.

155432224001 is a deficient number, since it is larger than the sum of its proper divisors (7966399).

155432224001 is an equidigital number, since it uses as much as digits as its factorization.

155432224001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7966398.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 155432224001 its reverse (100422234551), we get a palindrome (255854458552).

The spelling of 155432224001 in words is "one hundred fifty-five billion, four hundred thirty-two million, two hundred twenty-four thousand, one".