155093143893 has 16 divisors (see below), whose sum is σ = 217712716800. Its totient is φ = 97936406640.

The previous prime is 155093143831. The next prime is 155093143901. The reversal of 155093143893 is 398341390551.

It is a de Polignac number, because none of the positive numbers 2^k-155093143893 is a prime.

It is a super-2 number, since 2×155093143893² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155093143813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93988 + ... + 564818.

It is an arithmetic number, because the mean of its divisors is an integer number (13607044800).

Almost surely, 2^155093143893 is an apocalyptic number.

It is an amenable number.

155093143893 is a deficient number, since it is larger than the sum of its proper divisors (62619572907).

155093143893 is a wasteful number, since it uses less digits than its factorization.

155093143893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476632.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 155093143893 in words is "one hundred fifty-five billion, ninety-three million, one hundred forty-three thousand, eight hundred ninety-three".