202451666042 has 8 divisors (see below), whose sum is σ = 303702543936. Its totient is φ = 101217484732.

The previous prime is 202451666009. The next prime is 202451666071. The reversal of 202451666042 is 240666154202.

202451666042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 202451665987 and 202451666005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4143788 + ... + 4192359.

It is an arithmetic number, because the mean of its divisors is an integer number (37962817992).

Almost surely, 2^202451666042 is an apocalyptic number.

202451666042 is a deficient number, since it is larger than the sum of its proper divisors (101250877894).

202451666042 is a wasteful number, since it uses less digits than its factorization.

202451666042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8348292.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 202451666042 in words is "two hundred two billion, four hundred fifty-one million, six hundred sixty-six thousand, forty-two".