154202556222243 has 40 divisors (see below), whose sum is σ = 242479960536000. Its totient is φ = 97389398745072.

The previous prime is 154202556222241. The next prime is 154202556222283. The reversal of 154202556222243 is 342222655202451.

154202556222243 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 0 + 25 + 562 + 2 + 22 + 43 = 666.

It is not a de Polignac number, because 154202556222243 - 2¹ = 154202556222241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154202556222241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91037580 + ... + 92715942.

It is an arithmetic number, because the mean of its divisors is an integer number (6061999013400).

Almost surely, 2^{154202556222243} is an apocalyptic number.

154202556222243 is a deficient number, since it is larger than the sum of its proper divisors (88277404313757).

154202556222243 is a wasteful number, since it uses less digits than its factorization.

154202556222243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738093 (or 1738084 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

The spelling of 154202556222243 in words is "one hundred fifty-four trillion, two hundred two billion, five hundred fifty-six million, two hundred twenty-two thousand, two hundred forty-three".