154661666202 has 24 divisors (see below), whose sum is σ = 336576498336. Its totient is φ = 51326777736.

The previous prime is 154661666191. The next prime is 154661666239. The reversal of 154661666202 is 202666166451.

154661666202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 18921718 + ... + 18929889.

It is an arithmetic number, because the mean of its divisors is an integer number (14024020764).

Almost surely, 2^154661666202 is an apocalyptic number.

154661666202 is an abundant number, since it is smaller than the sum of its proper divisors (181914832134).

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

154661666202 is a wasteful number, since it uses less digits than its factorization.

154661666202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37851842 (or 37851839 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 154661666202 in words is "one hundred fifty-four billion, six hundred sixty-one million, six hundred sixty-six thousand, two hundred two".