66400033337 has 8 divisors (see below), whose sum is σ = 72592855680. Its totient is φ = 60233286960.

The previous prime is 66400033289. The next prime is 66400033351. The reversal of 66400033337 is 73333000466.

66400033337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66400033337 - 2¹⁰ = 66400032313 is a prime.

It is a super-2 number, since 2×66400033337² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66400033297 and 66400033306.

It is not an unprimeable number, because it can be changed into a prime (66400033397) 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, 6513662 + ... + 6523847.

It is an arithmetic number, because the mean of its divisors is an integer number (9074106960).

Almost surely, 2^66400033337 is an apocalyptic number.

It is an amenable number.

66400033337 is a deficient number, since it is larger than the sum of its proper divisors (6192822343).

66400033337 is a wasteful number, since it uses less digits than its factorization.

66400033337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13037983.

The product of its (nonzero) digits is 81648, while the sum is 35.

The spelling of 66400033337 in words is "sixty-six billion, four hundred million, thirty-three thousand, three hundred thirty-seven".