202045420505 has 8 divisors (see below), whose sum is σ = 243087547392. Its totient is φ = 161214307888.

The previous prime is 202045420483. The next prime is 202045420513. The reversal of 202045420505 is 505024540202.

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

It is a cyclic number.

It is not a de Polignac number, because 202045420505 - 2⁶ = 202045420441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52751459 + ... + 52755288.

It is an arithmetic number, because the mean of its divisors is an integer number (30385943424).

Almost surely, 2^202045420505 is an apocalyptic number.

It is an amenable number.

202045420505 is a deficient number, since it is larger than the sum of its proper divisors (41042126887).

202045420505 is a wasteful number, since it uses less digits than its factorization.

202045420505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105507135.

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 202045420505 its reverse (505024540202), we get a palindrome (707069960707).

The spelling of 202045420505 in words is "two hundred two billion, forty-five million, four hundred twenty thousand, five hundred five".