66548354119 has 32 divisors (see below), whose sum is σ = 73790196480. Its totient is φ = 59637606912.

The previous prime is 66548354113. The next prime is 66548354137. The reversal of 66548354119 is 91145384566.

It is a happy number.

It is not a de Polignac number, because 66548354119 - 2³ = 66548354111 is a prime.

It is a super-2 number, since 2×66548354119² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66548354111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29097394 + ... + 29099680.

It is an arithmetic number, because the mean of its divisors is an integer number (2305943640).

Almost surely, 2^66548354119 is an apocalyptic number.

66548354119 is a deficient number, since it is larger than the sum of its proper divisors (7241842361).

66548354119 is a wasteful number, since it uses less digits than its factorization.

66548354119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779.

The product of its digits is 3110400, while the sum is 52.

The spelling of 66548354119 in words is "sixty-six billion, five hundred forty-eight million, three hundred fifty-four thousand, one hundred nineteen".