66515116151486 has 8 divisors (see below), whose sum is σ = 100349394888024. Its totient is φ = 33065317855480.

The previous prime is 66515116151479. The next prime is 66515116151489. The reversal of 66515116151486 is 68415161151566.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66515116151489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96120109700 + ... + 96120110391.

It is an arithmetic number, because the mean of its divisors is an integer number (12543674361003).

Almost surely, 2^{66515116151486} is an apocalyptic number.

66515116151486 is a deficient number, since it is larger than the sum of its proper divisors (33834278736538).

66515116151486 is a wasteful number, since it uses less digits than its factorization.

66515116151486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192240220266.

The product of its digits is 5184000, while the sum is 56.

The spelling of 66515116151486 in words is "sixty-six trillion, five hundred fifteen billion, one hundred sixteen million, one hundred fifty-one thousand, four hundred eighty-six".