66078620762 has 16 divisors (see below), whose sum is σ = 123575602752. Its totient is φ = 25744917120.

The previous prime is 66078620701. The next prime is 66078620767. The reversal of 66078620762 is 26702687066.

It is a self number, because there is not a number n which added to its sum of digits gives 66078620762.

It is not an unprimeable number, because it can be changed into a prime (66078620767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214540823 + ... + 214541130.

It is an arithmetic number, because the mean of its divisors is an integer number (7723475172).

Almost surely, 2^66078620762 is an apocalyptic number.

66078620762 is a deficient number, since it is larger than the sum of its proper divisors (57496981990).

66078620762 is a wasteful number, since it uses less digits than its factorization.

66078620762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429081973.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 66078620762 in words is "sixty-six billion, seventy-eight million, six hundred twenty thousand, seven hundred sixty-two".