155221152054133 has 8 divisors (see below), whose sum is σ = 169600521139776. Its totient is φ = 140886508845600.

The previous prime is 155221152054127. The next prime is 155221152054139. The reversal of 155221152054133 is 331450251122551.

It is an interprime number because it is at equal distance from previous prime (155221152054127) and next prime (155221152054139).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155221152054133 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 (155221152054139) 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, 11181462016 + ... + 11181475897.

It is an arithmetic number, because the mean of its divisors is an integer number (21200065142472).

Almost surely, 2^{155221152054133} is an apocalyptic number.

It is an amenable number.

155221152054133 is a deficient number, since it is larger than the sum of its proper divisors (14379369085643).

155221152054133 is a wasteful number, since it uses less digits than its factorization.

155221152054133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362938555.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 155221152054133 in words is "one hundred fifty-five trillion, two hundred twenty-one billion, one hundred fifty-two million, fifty-four thousand, one hundred thirty-three".