64534655053111 has 4 divisors (see below), whose sum is σ = 67931215845400. Its totient is φ = 61138094260824.

The previous prime is 64534655053051. The next prime is 64534655053117. The reversal of 64534655053111 is 11135055643546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64534655053111 - 2⁹ = 64534655052599 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 (64534655053117) 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, 1698280396116 + ... + 1698280396153.

It is an arithmetic number, because the mean of its divisors is an integer number (16982803961350).

Almost surely, 2^{64534655053111} is an apocalyptic number.

64534655053111 is a deficient number, since it is larger than the sum of its proper divisors (3396560792289).

64534655053111 is a wasteful number, since it uses less digits than its factorization.

64534655053111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396560792288.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 64534655053111 in words is "sixty-four trillion, five hundred thirty-four billion, six hundred fifty-five million, fifty-three thousand, one hundred eleven".