66474355311 has 48 divisors (see below), whose sum is σ = 119795597376. Its totient is φ = 34583044608.

The previous prime is 66474355267. The next prime is 66474355313. The reversal of 66474355311 is 11355347466.

66474355311 is a `hidden beast` number, since 6 + 6 + 47 + 43 + 553 + 11 = 666.

It is not a de Polignac number, because 66474355311 - 2¹³ = 66474347119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66474355313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496140 + ... + 615713.

It is an arithmetic number, because the mean of its divisors is an integer number (2495741612).

Almost surely, 2^66474355311 is an apocalyptic number.

66474355311 is a deficient number, since it is larger than the sum of its proper divisors (53321242065).

66474355311 is a wasteful number, since it uses less digits than its factorization.

66474355311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111952 (or 1111949 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 66474355311 in words is "sixty-six billion, four hundred seventy-four million, three hundred fifty-five thousand, three hundred eleven".