66741945600099 has 48 divisors (see below), whose sum is σ = 112943061348480. Its totient is φ = 34666779853440.

The previous prime is 66741945600097. The next prime is 66741945600137. The reversal of 66741945600099 is 99000654914766.

It is not a de Polignac number, because 66741945600099 - 2¹ = 66741945600097 is a prime.

It is a super-3 number, since 3×66741945600099³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66741945600091) 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, 10284487 + ... + 15467855.

It is an arithmetic number, because the mean of its divisors is an integer number (2352980444760).

Almost surely, 2^{66741945600099} is an apocalyptic number.

66741945600099 is a deficient number, since it is larger than the sum of its proper divisors (46201115748381).

66741945600099 is a wasteful number, since it uses less digits than its factorization.

66741945600099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191360 (or 5191353 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 66741945600099 in words is "sixty-six trillion, seven hundred forty-one billion, nine hundred forty-five million, six hundred thousand, ninety-nine".