66305151 has 24 divisors (see below), whose sum is σ = 110629584. Its totient is φ = 37820160.

The previous prime is 66305137. The next prime is 66305167. The reversal of 66305151 is 15150366.

It is a happy number.

It is not a de Polignac number, because 66305151 - 2⁷ = 66305023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66305101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18016 + ... + 21381.

It is an arithmetic number, because the mean of its divisors is an integer number (4609566).

Almost surely, 2^66305151 is an apocalyptic number.

66305151 is a deficient number, since it is larger than the sum of its proper divisors (44324433).

66305151 is a wasteful number, since it uses less digits than its factorization.

66305151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39431 (or 39428 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 66305151 is about 8142.7974922627. The cubic root of 66305151 is about 404.7458670882.

It can be divided in two parts, 6630 and 5151, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 66305151 in words is "sixty-six million, three hundred five thousand, one hundred fifty-one".