155156126432533 has 4 divisors (see below), whose sum is σ = 155161215050688. Its totient is φ = 155151037814380.

The previous prime is 155156126432429. The next prime is 155156126432539. The reversal of 155156126432533 is 335234621651551.

It is a happy number.

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 155156126432533 - 2¹⁷ = 155156126301461 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 (155156126432539) 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, 2544263341 + ... + 2544324322.

It is an arithmetic number, because the mean of its divisors is an integer number (38790303762672).

Almost surely, 2^{155156126432533} is an apocalyptic number.

It is an amenable number.

155156126432533 is a deficient number, since it is larger than the sum of its proper divisors (5088618155).

155156126432533 is an equidigital number, since it uses as much as digits as its factorization.

155156126432533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088618154.

The product of its digits is 9720000, while the sum is 52.

The spelling of 155156126432533 in words is "one hundred fifty-five trillion, one hundred fifty-six billion, one hundred twenty-six million, four hundred thirty-two thousand, five hundred thirty-three".