155741323493 has 24 divisors (see below), whose sum is σ = 189120002688. Its totient is φ = 127638129696.

The previous prime is 155741323469. The next prime is 155741323499. The reversal of 155741323493 is 394323147551.

It is not a de Polignac number, because 155741323493 - 2¹⁸ = 155741061349 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 (155741323499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2975255 + ... + 3027147.

It is an arithmetic number, because the mean of its divisors is an integer number (7880000112).

Almost surely, 2^155741323493 is an apocalyptic number.

It is an amenable number.

155741323493 is a deficient number, since it is larger than the sum of its proper divisors (33378679195).

155741323493 is a wasteful number, since it uses less digits than its factorization.

155741323493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54593 (or 54586 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 47.

The spelling of 155741323493 in words is "one hundred fifty-five billion, seven hundred forty-one million, three hundred twenty-three thousand, four hundred ninety-three".