155221152054041 has 4 divisors (see below), whose sum is σ = 155250422500992. Its totient is φ = 155191881607092.

The previous prime is 155221152053993. The next prime is 155221152054079. The reversal of 155221152054041 is 140450251122551.

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.

It is a cyclic number.

It is not a de Polignac number, because 155221152054041 - 2¹⁰ = 155221152053017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155221152053986 and 155221152054004.

It is not an unprimeable number, because it can be changed into a prime (155221152054341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14635215521 + ... + 14635226126.

It is an arithmetic number, because the mean of its divisors is an integer number (38812605625248).

Almost surely, 2^{155221152054041} is an apocalyptic number.

It is an amenable number.

155221152054041 is a deficient number, since it is larger than the sum of its proper divisors (29270446951).

155221152054041 is an equidigital number, since it uses as much as digits as its factorization.

155221152054041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29270446950.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 155221152054041 in words is "one hundred fifty-five trillion, two hundred twenty-one billion, one hundred fifty-two million, fifty-four thousand, forty-one".