66248574051 has 16 divisors (see below), whose sum is σ = 96369844608. Its totient is φ = 40147200000.

The previous prime is 66248574019. The next prime is 66248574103. The reversal of 66248574051 is 15047584266.

66248574051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66248574051 - 2⁵ = 66248574019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66248574011) 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, 334051 + ... + 494051.

It is an arithmetic number, because the mean of its divisors is an integer number (6023115288).

Almost surely, 2^66248574051 is an apocalyptic number.

66248574051 is a deficient number, since it is larger than the sum of its proper divisors (30121270557).

66248574051 is a wasteful number, since it uses less digits than its factorization.

66248574051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172562.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 66248574051 in words is "sixty-six billion, two hundred forty-eight million, five hundred seventy-four thousand, fifty-one".