66772617602 has 8 divisors (see below), whose sum is σ = 100178881536. Its totient is φ = 33379657092.

The previous prime is 66772617599. The next prime is 66772617619. The reversal of 66772617602 is 20671627766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66772617602² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313298 + ... + 3333389.

It is an arithmetic number, because the mean of its divisors is an integer number (12522360192).

Almost surely, 2^66772617602 is an apocalyptic number.

66772617602 is a deficient number, since it is larger than the sum of its proper divisors (33406263934).

66772617602 is a wasteful number, since it uses less digits than its factorization.

66772617602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651712.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 66772617602 in words is "sixty-six billion, seven hundred seventy-two million, six hundred seventeen thousand, six hundred two".