155052201623 has 4 divisors (see below), whose sum is σ = 169147856328. Its totient is φ = 140956546920.

The previous prime is 155052201593. The next prime is 155052201677. The reversal of 155052201623 is 326102250551.

155052201623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 155052201623 - 2¹² = 155052197527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155052201623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155052200623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7047827336 + ... + 7047827357.

It is an arithmetic number, because the mean of its divisors is an integer number (42286964082).

Almost surely, 2^155052201623 is an apocalyptic number.

155052201623 is a deficient number, since it is larger than the sum of its proper divisors (14095654705).

155052201623 is a wasteful number, since it uses less digits than its factorization.

155052201623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14095654704.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 155052201623 in words is "one hundred fifty-five billion, fifty-two million, two hundred one thousand, six hundred twenty-three".