66319494374 has 8 divisors (see below), whose sum is σ = 113690561808. Its totient is φ = 28422640440.

The previous prime is 66319494347. The next prime is 66319494403. The reversal of 66319494374 is 47349491366.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368553357 + ... + 2368553384.

It is an arithmetic number, because the mean of its divisors is an integer number (14211320226).

Almost surely, 2^66319494374 is an apocalyptic number.

66319494374 is a deficient number, since it is larger than the sum of its proper divisors (47371067434).

66319494374 is a wasteful number, since it uses less digits than its factorization.

66319494374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737106750.

The product of its digits is 11757312, while the sum is 56.

The spelling of 66319494374 in words is "sixty-six billion, three hundred nineteen million, four hundred ninety-four thousand, three hundred seventy-four".