66441650336255 has 16 divisors (see below), whose sum is σ = 82303426848000. Its totient is φ = 51437752289280.

The previous prime is 66441650336203. The next prime is 66441650336267. The reversal of 66441650336255 is 55263305614466.

It is not a de Polignac number, because 66441650336255 - 2¹⁴ = 66441650319871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66441650336255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4589471 + ... + 12407519.

It is an arithmetic number, because the mean of its divisors is an integer number (5143964178000).

Almost surely, 2^{66441650336255} is an apocalyptic number.

66441650336255 is a deficient number, since it is larger than the sum of its proper divisors (15861776511745).

66441650336255 is a wasteful number, since it uses less digits than its factorization.

66441650336255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872914.

The product of its (nonzero) digits is 46656000, while the sum is 56.

The spelling of 66441650336255 in words is "sixty-six trillion, four hundred forty-one billion, six hundred fifty million, three hundred thirty-six thousand, two hundred fifty-five".