66122151 has 8 divisors (see below), whose sum is σ = 88201344. Its totient is φ = 44062200.

The previous prime is 66122137. The next prime is 66122153. The reversal of 66122151 is 15122166.

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

It is not a de Polignac number, because 66122151 - 2¹⁰ = 66121127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66122153) 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, 8376 + ... + 14226.

It is an arithmetic number, because the mean of its divisors is an integer number (11025168).

Almost surely, 2^66122151 is an apocalyptic number.

66122151 is a deficient number, since it is larger than the sum of its proper divisors (22079193).

66122151 is a wasteful number, since it uses less digits than its factorization.

66122151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621.

The product of its digits is 720, while the sum is 24.

The square root of 66122151 is about 8131.5528037393. The cubic root of 66122151 is about 404.3731623062.

The spelling of 66122151 in words is "sixty-six million, one hundred twenty-two thousand, one hundred fifty-one".