66025532474 has 8 divisors (see below), whose sum is σ = 108041780448. Its totient is φ = 30011605660.

The previous prime is 66025532459. The next prime is 66025532479. The reversal of 66025532474 is 47423552066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66025532479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500580262 + ... + 1500580305.

It is an arithmetic number, because the mean of its divisors is an integer number (13505222556).

Almost surely, 2^66025532474 is an apocalyptic number.

66025532474 is a deficient number, since it is larger than the sum of its proper divisors (42016247974).

66025532474 is a wasteful number, since it uses less digits than its factorization.

66025532474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001160580.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 66025532474 in words is "sixty-six billion, twenty-five million, five hundred thirty-two thousand, four hundred seventy-four".