66754714643033 has 8 divisors (see below), whose sum is σ = 66913100490600. Its totient is φ = 66596348233728.

The previous prime is 66754714642997. The next prime is 66754714643081. The reversal of 66754714643033 is 33034641745766.

It can be written as a sum of positive squares in 4 ways, for example, as 1924567994944 + 64830146648089 = 1387288^2 + 8051717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66754714643033 - 2¹⁸ = 66754714380889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66754714643833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028533 + ... + 11731341.

It is an arithmetic number, because the mean of its divisors is an integer number (8364137561325).

Almost surely, 2^{66754714643033} is an apocalyptic number.

It is an amenable number.

66754714643033 is a deficient number, since it is larger than the sum of its proper divisors (158385847567).

66754714643033 is a wasteful number, since it uses less digits than its factorization.

66754714643033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719131.

The product of its (nonzero) digits is 91445760, while the sum is 59.

The spelling of 66754714643033 in words is "sixty-six trillion, seven hundred fifty-four billion, seven hundred fourteen million, six hundred forty-three thousand, thirty-three".