66536351 has 16 divisors (see below), whose sum is σ = 82393344. Its totient is φ = 52424064.

The previous prime is 66536329. The next prime is 66536383. The reversal of 66536351 is 15363566.

It is not a de Polignac number, because 66536351 - 2¹⁰ = 66535327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66536051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385 + ... + 11618.

It is an arithmetic number, because the mean of its divisors is an integer number (5149584).

Almost surely, 2^66536351 is an apocalyptic number.

66536351 is a deficient number, since it is larger than the sum of its proper divisors (15856993).

66536351 is a wasteful number, since it uses less digits than its factorization.

66536351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070.

The product of its digits is 48600, while the sum is 35.

The square root of 66536351 is about 8156.9817334600. The cubic root of 66536351 is about 405.2157586334.

The spelling of 66536351 in words is "sixty-six million, five hundred thirty-six thousand, three hundred fifty-one".