66950498995 has 8 divisors (see below), whose sum is σ = 80410406400. Its totient is φ = 53513860800.

The previous prime is 66950498983. The next prime is 66950499017. The reversal of 66950498995 is 59989405966.

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

It is not a de Polignac number, because 66950498995 - 2⁵ = 66950498963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5810970 + ... + 5822479.

It is an arithmetic number, because the mean of its divisors is an integer number (10051300800).

Almost surely, 2^66950498995 is an apocalyptic number.

66950498995 is a deficient number, since it is larger than the sum of its proper divisors (13459907405).

66950498995 is a wasteful number, since it uses less digits than its factorization.

66950498995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634605.

The product of its (nonzero) digits is 188956800, while the sum is 70.

The spelling of 66950498995 in words is "sixty-six billion, nine hundred fifty million, four hundred ninety-eight thousand, nine hundred ninety-five".