64025611653 has 4 divisors (see below), whose sum is σ = 85367482208. Its totient is φ = 42683741100.

The previous prime is 64025611649. The next prime is 64025611687. The reversal of 64025611653 is 35611652046.

64025611653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 64025611653 - 2² = 64025611649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64025611453) 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, 10670935273 + ... + 10670935278.

It is an arithmetic number, because the mean of its divisors is an integer number (21341870552).

Almost surely, 2^64025611653 is an apocalyptic number.

It is an amenable number.

64025611653 is a deficient number, since it is larger than the sum of its proper divisors (21341870555).

64025611653 is a wasteful number, since it uses less digits than its factorization.

64025611653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21341870554.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 64025611653 in words is "sixty-four billion, twenty-five million, six hundred eleven thousand, six hundred fifty-three".