66013554411 has 48 divisors (see below), whose sum is σ = 110109564864. Its totient is φ = 37330255872.

The previous prime is 66013554391. The next prime is 66013554421. The reversal of 66013554411 is 11445531066.

66013554411 is a `hidden beast` number, since 6 + 60 + 1 + 3 + 554 + 41 + 1 = 666.

It is not a de Polignac number, because 66013554411 - 2¹⁰ = 66013553387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66013554421) 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, 4812715 + ... + 4826411.

It is an arithmetic number, because the mean of its divisors is an integer number (2293949268).

Almost surely, 2^66013554411 is an apocalyptic number.

66013554411 is a deficient number, since it is larger than the sum of its proper divisors (44096010453).

66013554411 is a wasteful number, since it uses less digits than its factorization.

66013554411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14500 (or 14497 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 66013554411 in words is "sixty-six billion, thirteen million, five hundred fifty-four thousand, four hundred eleven".