653400605603 has 8 divisors (see below), whose sum is σ = 668834620608. Its totient is φ = 637977438504.

The previous prime is 653400605567. The next prime is 653400605651. The reversal of 653400605603 is 306506004356.

It is a happy number.

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 653400605603 - 2²⁸ = 653132170147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653400695603) 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, 2590025 + ... + 2831082.

It is an arithmetic number, because the mean of its divisors is an integer number (83604327576).

Almost surely, 2^653400605603 is an apocalyptic number.

653400605603 is a deficient number, since it is larger than the sum of its proper divisors (15434015005).

653400605603 is a wasteful number, since it uses less digits than its factorization.

653400605603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423953.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 653400605603 its reverse (306506004356), we get a palindrome (959906609959).

The spelling of 653400605603 in words is "six hundred fifty-three billion, four hundred million, six hundred five thousand, six hundred three".