1555154240148 has 36 divisors (see below), whose sum is σ = 3959778388020. Its totient is φ = 514600914816.

The previous prime is 1555154240119. The next prime is 1555154240161. The reversal of 1555154240148 is 8410424515551.

It is a happy number.

1555154240148 is a `hidden beast` number, since 1 + 5 + 5 + 51 + 542 + 40 + 14 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1314664041744 + 240490198404 = 1146588^2 + 490398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 157654663 + ... + 157664526.

Almost surely, 2^{1555154240148} is an apocalyptic number.

1555154240148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1555154240148 is an abundant number, since it is smaller than the sum of its proper divisors (2404624147872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1555154240148 is a wasteful number, since it uses less digits than its factorization.

1555154240148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315319336 (or 315319331 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 45.

Adding to 1555154240148 its reverse (8410424515551), we get a palindrome (9965578755699).

The spelling of 1555154240148 in words is "one trillion, five hundred fifty-five billion, one hundred fifty-four million, two hundred forty thousand, one hundred forty-eight".