64200553613 has 4 divisors (see below), whose sum is σ = 73372061280. Its totient is φ = 55029045948.

The previous prime is 64200553577. The next prime is 64200553619. The reversal of 64200553613 is 31635500246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64200553613 - 2¹⁰ = 64200552589 is a prime.

It is a super-2 number, since 2×64200553613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64200553619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4585753823 + ... + 4585753836.

It is an arithmetic number, because the mean of its divisors is an integer number (18343015320).

Almost surely, 2^64200553613 is an apocalyptic number.

It is an amenable number.

64200553613 is a deficient number, since it is larger than the sum of its proper divisors (9171507667).

64200553613 is an equidigital number, since it uses as much as digits as its factorization.

64200553613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171507666.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 64200553613 in words is "sixty-four billion, two hundred million, five hundred fifty-three thousand, six hundred thirteen".