1155200050405 has 32 divisors (see below), whose sum is σ = 1438160790528. Its totient is φ = 889852953600.

The previous prime is 1155200050391. The next prime is 1155200050423. The reversal of 1155200050405 is 5040500025511.

It is a de Polignac number, because none of the positive numbers 2^k-1155200050405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44327359 + ... + 44353411.

It is an arithmetic number, because the mean of its divisors is an integer number (44942524704).

Almost surely, 2^{1155200050405} is an apocalyptic number.

It is an amenable number.

1155200050405 is a deficient number, since it is larger than the sum of its proper divisors (282960740123).

1155200050405 is a wasteful number, since it uses less digits than its factorization.

1155200050405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27517.

The product of its (nonzero) digits is 5000, while the sum is 28.

Adding to 1155200050405 its reverse (5040500025511), we get a palindrome (6195700075916).

The spelling of 1155200050405 in words is "one trillion, one hundred fifty-five billion, two hundred million, fifty thousand, four hundred five".