56666501106087 has 16 divisors (see below), whose sum is σ = 76667396480640. Its totient is φ = 37224038430432.

The previous prime is 56666501105999. The next prime is 56666501106107. The reversal of 56666501106087 is 78060110566665.

It is not a de Polignac number, because 56666501106087 - 2¹⁸ = 56666500843943 is a prime.

It is a super-2 number, since 2×56666501106087² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56666501106587) 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, 300138228 + ... + 300326969.

It is an arithmetic number, because the mean of its divisors is an integer number (4791712280040).

Almost surely, 2^{56666501106087} is an apocalyptic number.

56666501106087 is a deficient number, since it is larger than the sum of its proper divisors (20000895374553).

56666501106087 is a wasteful number, since it uses less digits than its factorization.

56666501106087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600465662.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 56666501106087 in words is "fifty-six trillion, six hundred sixty-six billion, five hundred one million, one hundred six thousand, eighty-seven".