66152212041 has 4 divisors (see below), whose sum is σ = 88202949392. Its totient is φ = 44101474692.

The previous prime is 66152212037. The next prime is 66152212043. The reversal of 66152212041 is 14021225166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66152212041 - 2² = 66152212037 is a prime.

It is a super-2 number, since 2×66152212041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66152212043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11025368671 + ... + 11025368676.

It is an arithmetic number, because the mean of its divisors is an integer number (22050737348).

Almost surely, 2^66152212041 is an apocalyptic number.

It is an amenable number.

66152212041 is a deficient number, since it is larger than the sum of its proper divisors (22050737351).

66152212041 is a wasteful number, since it uses less digits than its factorization.

66152212041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22050737350.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 66152212041 in words is "sixty-six billion, one hundred fifty-two million, two hundred twelve thousand, forty-one".