64012783055 has 16 divisors (see below), whose sum is σ = 87078119520. Its totient is φ = 44783031168.

The previous prime is 64012783033. The next prime is 64012783057. The reversal of 64012783055 is 55038721046.

It is a cyclic number.

It is not a de Polignac number, because 64012783055 - 2²⁴ = 63996005839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012783057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25914872 + ... + 25917341.

It is an arithmetic number, because the mean of its divisors is an integer number (5442382470).

Almost surely, 2^64012783055 is an apocalyptic number.

64012783055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64012783055 is a deficient number, since it is larger than the sum of its proper divisors (23065336465).

64012783055 is a wasteful number, since it uses less digits than its factorization.

64012783055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51832250.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 64012783055 in words is "sixty-four billion, twelve million, seven hundred eighty-three thousand, fifty-five".