155234013477533 has 4 divisors (see below), whose sum is σ = 155299874325660. Its totient is φ = 155168152629408.

The previous prime is 155234013477523. The next prime is 155234013477563. The reversal of 155234013477533 is 335774310432551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24169936861849 + 131064076615684 = 4916293^2 + 11448322^2 .

It is a cyclic number.

It is not a de Polignac number, because 155234013477533 - 2⁴² = 150835966966429 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 (155234013477523) 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, 32930420528 + ... + 32930425241.

It is an arithmetic number, because the mean of its divisors is an integer number (38824968581415).

Almost surely, 2^{155234013477533} is an apocalyptic number.

It is an amenable number.

155234013477533 is a deficient number, since it is larger than the sum of its proper divisors (65860848127).

155234013477533 is an equidigital number, since it uses as much as digits as its factorization.

155234013477533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65860848126.

The product of its (nonzero) digits is 15876000, while the sum is 53.

The spelling of 155234013477533 in words is "one hundred fifty-five trillion, two hundred thirty-four billion, thirteen million, four hundred seventy-seven thousand, five hundred thirty-three".