155263532453442 has 72 divisors (see below), whose sum is σ = 391537756854972. Its totient is φ = 44337171614400.

The previous prime is 155263532453431. The next prime is 155263532453483. The reversal of 155263532453442 is 244354235362551.

155263532453442 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 6 + 3 + 53 + 245 + 344 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 136712241144801 + 18551291308641 = 11692401^2 + 4307121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45654609 + ... + 48937412.

Almost surely, 2^{155263532453442} is an apocalyptic number.

155263532453442 is an abundant number, since it is smaller than the sum of its proper divisors (236274224401530).

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

155263532453442 is a wasteful number, since it uses less digits than its factorization.

155263532453442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94593904 (or 94593894 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 54.

The spelling of 155263532453442 in words is "one hundred fifty-five trillion, two hundred sixty-three billion, five hundred thirty-two million, four hundred fifty-three thousand, four hundred forty-two".