202145616442 has 32 divisors (see below), whose sum is σ = 391074376320. Its totient is φ = 76042236480.

The previous prime is 202145616433. The next prime is 202145616469. The reversal of 202145616442 is 244616541202.

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 15 ways as a sum of consecutive naturals, for example, 22627153 + ... + 22636084.

It is an arithmetic number, because the mean of its divisors is an integer number (12221074260).

Almost surely, 2^202145616442 is an apocalyptic number.

202145616442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202145616442 is a deficient number, since it is larger than the sum of its proper divisors (188928759878).

202145616442 is a wasteful number, since it uses less digits than its factorization.

202145616442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45263286.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 202145616442 in words is "two hundred two billion, one hundred forty-five million, six hundred sixteen thousand, four hundred forty-two".