154202542165664 has 24 divisors (see below), whose sum is σ = 305341088742900. Its totient is φ = 76655598992896.

The previous prime is 154202542165657. The next prime is 154202542165669. The reversal of 154202542165664 is 466561245202451.

It can be written as a sum of positive squares in 2 ways, for example, as 151364301120400 + 2838241045264 = 12303020^2 + 1684708^2 .

It is not an unprimeable number, because it can be changed into a prime (154202542165669) 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, 13927247189 + ... + 13927258260.

Almost surely, 2^{154202542165664} is an apocalyptic number.

It is an amenable number.

154202542165664 is a deficient number, since it is larger than the sum of its proper divisors (151138546577236).

154202542165664 is a wasteful number, since it uses less digits than its factorization.

154202542165664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27854505632 (or 27854505624 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 53.

The spelling of 154202542165664 in words is "one hundred fifty-four trillion, two hundred two billion, five hundred forty-two million, one hundred sixty-five thousand, six hundred sixty-four".