155143553545 has 24 divisors (see below), whose sum is σ = 201119875200. Its totient is φ = 114834008832.

The previous prime is 155143553519. The next prime is 155143553549. The reversal of 155143553545 is 545355341551.

It is not a de Polignac number, because 155143553545 - 2⁷ = 155143553417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155143553495 and 155143553504.

It is not an unprimeable number, because it can be changed into a prime (155143553549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 824625 + ... + 995134.

It is an arithmetic number, because the mean of its divisors is an integer number (8379994800).

Almost surely, 2^155143553545 is an apocalyptic number.

It is an amenable number.

155143553545 is a deficient number, since it is larger than the sum of its proper divisors (45976321655).

155143553545 is a wasteful number, since it uses less digits than its factorization.

155143553545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819857 (or 1819840 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 46.

The spelling of 155143553545 in words is "one hundred fifty-five billion, one hundred forty-three million, five hundred fifty-three thousand, five hundred forty-five".