155453055015663 has 12 divisors (see below), whose sum is σ = 226530410555280. Its totient is φ = 102718242841536.

The previous prime is 155453055015659. The next prime is 155453055015679. The reversal of 155453055015663 is 366510550354551.

155453055015663 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 5 + 30 + 550 + 1 + 56 + 6 + 3 = 666.

It is not a de Polignac number, because 155453055015663 - 2² = 155453055015659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155453055015623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76427263003 + ... + 76427265036.

It is an arithmetic number, because the mean of its divisors is an integer number (18877534212940).

Almost surely, 2^{155453055015663} is an apocalyptic number.

155453055015663 is a deficient number, since it is larger than the sum of its proper divisors (71077355539617).

155453055015663 is a wasteful number, since it uses less digits than its factorization.

155453055015663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152854528158 (or 152854528155 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 54.

The spelling of 155453055015663 in words is "one hundred fifty-five trillion, four hundred fifty-three billion, fifty-five million, fifteen thousand, six hundred sixty-three".