66148761662 has 4 divisors (see below), whose sum is σ = 99223142496. Its totient is φ = 33074380830.

The previous prime is 66148761643. The next prime is 66148761683. The reversal of 66148761662 is 26616784166.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×66148761662³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16537190414 + ... + 16537190417.

It is an arithmetic number, because the mean of its divisors is an integer number (24805785624).

Almost surely, 2^66148761662 is an apocalyptic number.

66148761662 is a deficient number, since it is larger than the sum of its proper divisors (33074380834).

66148761662 is a wasteful number, since it uses less digits than its factorization.

66148761662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33074380833.

The product of its digits is 3483648, while the sum is 53.

The spelling of 66148761662 in words is "sixty-six billion, one hundred forty-eight million, seven hundred sixty-one thousand, six hundred sixty-two".