66437479711 has 2 divisors, whose sum is σ = 66437479712. Its totient is φ = 66437479710.

The previous prime is 66437479673. The next prime is 66437479727. The reversal of 66437479711 is 11797473466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66437479711 - 2¹⁷ = 66437348639 is a prime.

It is a super-3 number, since 3×66437479711³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66437479781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33218739855 + 33218739856.

It is an arithmetic number, because the mean of its divisors is an integer number (33218739856).

Almost surely, 2^66437479711 is an apocalyptic number.

66437479711 is a deficient number, since it is larger than the sum of its proper divisors (1).

66437479711 is an equidigital number, since it uses as much as digits as its factorization.

66437479711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 55.

The spelling of 66437479711 in words is "sixty-six billion, four hundred thirty-seven million, four hundred seventy-nine thousand, seven hundred eleven".