64335611620113 has 4 divisors (see below), whose sum is σ = 85780815493488. Its totient is φ = 42890407746740.

The previous prime is 64335611620079. The next prime is 64335611620117. The reversal of 64335611620113 is 31102611653346.

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 64335611620113 - 2³⁴ = 64318431750929 is a prime.

It is a super-2 number, since 2×64335611620113² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64335611620117) 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, 10722601936683 + ... + 10722601936688.

It is an arithmetic number, because the mean of its divisors is an integer number (21445203873372).

Almost surely, 2^{64335611620113} is an apocalyptic number.

It is an amenable number.

64335611620113 is a deficient number, since it is larger than the sum of its proper divisors (21445203873375).

64335611620113 is a wasteful number, since it uses less digits than its factorization.

64335611620113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21445203873374.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 64335611620113 in words is "sixty-four trillion, three hundred thirty-five billion, six hundred eleven million, six hundred twenty thousand, one hundred thirteen".