155040412203 has 40 divisors (see below), whose sum is σ = 233067634800. Its totient is φ = 102707818560.

The previous prime is 155040412181. The next prime is 155040412249. The reversal of 155040412203 is 302214040551.

155040412203 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 40 + 412 + 203 = 666.

It is not a de Polignac number, because 155040412203 - 2¹⁴ = 155040395819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (155040411203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22706476 + ... + 22713302.

It is an arithmetic number, because the mean of its divisors is an integer number (5826690870).

Almost surely, 2^155040412203 is an apocalyptic number.

155040412203 is a deficient number, since it is larger than the sum of its proper divisors (78027222597).

155040412203 is a wasteful number, since it uses less digits than its factorization.

155040412203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569 (or 8560 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 155040412203 its reverse (302214040551), we get a palindrome (457254452754).

The spelling of 155040412203 in words is "one hundred fifty-five billion, forty million, four hundred twelve thousand, two hundred three".