66241073043 has 24 divisors (see below), whose sum is σ = 96699590208. Its totient is φ = 43691910192.

The previous prime is 66241073039. The next prime is 66241073047. The reversal of 66241073043 is 34037014266.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66241073039) and next prime (66241073047).

It is not a de Polignac number, because 66241073043 - 2² = 66241073039 is a prime.

It is a super-2 number, since 2×66241073043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66241072989 and 66241073007.

It is not an unprimeable number, because it can be changed into a prime (66241073047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 714180 + ... + 801582.

It is an arithmetic number, because the mean of its divisors is an integer number (4029149592).

Almost surely, 2^66241073043 is an apocalyptic number.

66241073043 is a deficient number, since it is larger than the sum of its proper divisors (30458517165).

66241073043 is a wasteful number, since it uses less digits than its factorization.

66241073043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88303 (or 88300 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 66241073043 in words is "sixty-six billion, two hundred forty-one million, seventy-three thousand, forty-three".