653522216340403 has 8 divisors (see below), whose sum is σ = 660275515370240. Its totient is φ = 646769242955520.

The previous prime is 653522216340377. The next prime is 653522216340463. The reversal of 653522216340403 is 304043612225356.

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 653522216340403 - 2²⁵ = 653522182785971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653522216340463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77375763 + ... + 85405228.

It is an arithmetic number, because the mean of its divisors is an integer number (82534439421280).

Almost surely, 2^{653522216340403} is an apocalyptic number.

653522216340403 is a deficient number, since it is larger than the sum of its proper divisors (6753299029837).

653522216340403 is a wasteful number, since it uses less digits than its factorization.

653522216340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162822477.

The product of its (nonzero) digits is 3110400, while the sum is 46.

Adding to 653522216340403 its reverse (304043612225356), we get a palindrome (957565828565759).

The spelling of 653522216340403 in words is "six hundred fifty-three trillion, five hundred twenty-two billion, two hundred sixteen million, three hundred forty thousand, four hundred three".