154213090566 has 12 divisors (see below), whose sum is σ = 308428104972. Its totient is φ = 51404042884.

The previous prime is 154213090553. The next prime is 154213090571. The reversal of 154213090566 is 665090312451.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 881755 + ... + 1042073.

It is an arithmetic number, because the mean of its divisors is an integer number (25702342081).

Almost surely, 2^154213090566 is an apocalyptic number.

154213090566 is an abundant number, since it is smaller than the sum of its proper divisors (154215014406).

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

154213090566 is an frugal number, since it uses more digits than its factorization.

154213090566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320643 (or 160324 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 154213090566 in words is "one hundred fifty-four billion, two hundred thirteen million, ninety thousand, five hundred sixty-six".