154474055863345 has 4 divisors (see below), whose sum is σ = 185368867036020. Its totient is φ = 123579244690672.

The previous prime is 154474055863331. The next prime is 154474055863349. The reversal of 154474055863345 is 543368550474451.

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

It can be written as a sum of positive squares in 2 ways, for example, as 73595672179264 + 80878383684081 = 8578792^2 + 8993241^2 .

It is a cyclic number.

It is not a de Polignac number, because 154474055863345 - 2²³ = 154474047474737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154474055863349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15447405586330 + ... + 15447405586339.

It is an arithmetic number, because the mean of its divisors is an integer number (46342216759005).

Almost surely, 2^{154474055863345} is an apocalyptic number.

It is an amenable number.

154474055863345 is a deficient number, since it is larger than the sum of its proper divisors (30894811172675).

154474055863345 is an equidigital number, since it uses as much as digits as its factorization.

154474055863345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30894811172674.

The product of its (nonzero) digits is 483840000, while the sum is 64.

The spelling of 154474055863345 in words is "one hundred fifty-four trillion, four hundred seventy-four billion, fifty-five million, eight hundred sixty-three thousand, three hundred forty-five".