154561066 has 16 divisors (see below), whose sum is σ = 253497600. Its totient is φ = 70094080.

The previous prime is 154561037. The next prime is 154561117. The reversal of 154561066 is 660165451.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055 + ... + 17701.

It is an arithmetic number, because the mean of its divisors is an integer number (15843600).

Almost surely, 2^154561066 is an apocalyptic number.

154561066 is a deficient number, since it is larger than the sum of its proper divisors (98936534).

154561066 is a wasteful number, since it uses less digits than its factorization.

154561066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16109.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 154561066 is about 12432.2590867469. The cubic root of 154561066 is about 536.6609990443.

The spelling of 154561066 in words is "one hundred fifty-four million, five hundred sixty-one thousand, sixty-six".