154155544542 has 24 divisors (see below), whose sum is σ = 336553331400. Its totient is φ = 50992927440.

The previous prime is 154155544523. The next prime is 154155544573. The reversal of 154155544542 is 245445551451.

154155544542 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 55 + 54 + 4 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32685417 + ... + 32690132.

It is an arithmetic number, because the mean of its divisors is an integer number (14023055475).

Almost surely, 2^154155544542 is an apocalyptic number.

154155544542 is an abundant number, since it is smaller than the sum of its proper divisors (182397786858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154155544542 is a wasteful number, since it uses less digits than its factorization.

154155544542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65375688 (or 65375685 counting only the distinct ones).

The product of its digits is 1600000, while the sum is 45.

The spelling of 154155544542 in words is "one hundred fifty-four billion, one hundred fifty-five million, five hundred forty-four thousand, five hundred forty-two".