155400051434 has 8 divisors (see below), whose sum is σ = 233670005220. Its totient is φ = 77510049696.

The previous prime is 155400051361. The next prime is 155400051439. The reversal of 155400051434 is 434150004551.

It can be written as a sum of positive squares in 2 ways, for example, as 145125188209 + 10274863225 = 380953^2 + 101365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 155400051434.

It is not an unprimeable number, because it can be changed into a prime (155400051439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94986989 + ... + 94988624.

Almost surely, 2^155400051434 is an apocalyptic number.

155400051434 is a deficient number, since it is larger than the sum of its proper divisors (78269953786).

155400051434 is a wasteful number, since it uses less digits than its factorization.

155400051434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189976024.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 155400051434 its reverse (434150004551), we get a palindrome (589550055985).

The spelling of 155400051434 in words is "one hundred fifty-five billion, four hundred million, fifty-one thousand, four hundred thirty-four".