66151600506151 has 4 divisors (see below), whose sum is σ = 67559081368032. Its totient is φ = 64744119644272.

The previous prime is 66151600506133. The next prime is 66151600506191. The reversal of 66151600506151 is 15160500615166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66151600506151 - 2¹⁷ = 66151600375079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66151600506098 and 66151600506107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151600506191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703740430870 + ... + 703740430963.

It is an arithmetic number, because the mean of its divisors is an integer number (16889770342008).

Almost surely, 2^{66151600506151} is an apocalyptic number.

66151600506151 is a deficient number, since it is larger than the sum of its proper divisors (1407480861881).

66151600506151 is a wasteful number, since it uses less digits than its factorization.

66151600506151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407480861880.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 66151600506151 in words is "sixty-six trillion, one hundred fifty-one billion, six hundred million, five hundred six thousand, one hundred fifty-one".