64000555555005 has 24 divisors (see below), whose sum is σ = 110936076090840. Its totient is φ = 34133082000000.

The previous prime is 64000555554983. The next prime is 64000555555051. The reversal of 64000555555005 is 50055555500046.

64000555555005 is a `hidden beast` number, since 6 + 40 + 0 + 0 + 5 + 5 + 55 + 550 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11540172908889 + 52460382646116 = 3397083^2 + 7242954^2 .

It is not a de Polignac number, because 64000555555005 - 2¹² = 64000555550909 is a prime.

It is a super-2 number, since 2×64000555555005² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8565150 + ... + 14190239.

It is an arithmetic number, because the mean of its divisors is an integer number (4622336503785).

Almost surely, 2^{64000555555005} is an apocalyptic number.

It is an amenable number.

64000555555005 is a deficient number, since it is larger than the sum of its proper divisors (46935520535835).

64000555555005 is a wasteful number, since it uses less digits than its factorization.

64000555555005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22817901 (or 22817898 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 45.

The spelling of 64000555555005 in words is "sixty-four trillion, five hundred fifty-five million, five hundred fifty-five thousand, five".