66360402087 has 16 divisors (see below), whose sum is σ = 101372796672. Its totient is φ = 37825660800.

The previous prime is 66360402001. The next prime is 66360402091. The reversal of 66360402087 is 78020406366.

It is not a de Polignac number, because 66360402087 - 2⁷ = 66360401959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66360401087) 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, 3931753 + ... + 3948594.

It is an arithmetic number, because the mean of its divisors is an integer number (6335799792).

Almost surely, 2^66360402087 is an apocalyptic number.

66360402087 is a deficient number, since it is larger than the sum of its proper divisors (35012394585).

66360402087 is a wasteful number, since it uses less digits than its factorization.

66360402087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7880758.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 66360402087 in words is "sixty-six billion, three hundred sixty million, four hundred two thousand, eighty-seven".