155052543131546 has 4 divisors (see below), whose sum is σ = 232578814697322. Its totient is φ = 77526271565772.

The previous prime is 155052543131543. The next prime is 155052543131581. The reversal of 155052543131546 is 645131345250551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 150142503160225 + 4910039971321 = 12253265^2 + 2215861^2 .

It is a super-2 number, since 2×155052543131546² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155052543131494 and 155052543131503.

It is not an unprimeable number, because it can be changed into a prime (155052543131543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38763135782885 + ... + 38763135782888.

Almost surely, 2^{155052543131546} is an apocalyptic number.

155052543131546 is a deficient number, since it is larger than the sum of its proper divisors (77526271565776).

155052543131546 is an equidigital number, since it uses as much as digits as its factorization.

155052543131546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77526271565775.

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 155052543131546 in words is "one hundred fifty-five trillion, fifty-two billion, five hundred forty-three million, one hundred thirty-one thousand, five hundred forty-six".