66551562035 has 16 divisors (see below), whose sum is σ = 93393290496. Its totient is φ = 44574068448.

The previous prime is 66551561981. The next prime is 66551562047. The reversal of 66551562035 is 53026515566.

It is not a de Polignac number, because 66551562035 - 2⁸ = 66551561779 is a prime.

It is a super-2 number, since 2×66551562035² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22108649 + ... + 22111658.

It is an arithmetic number, because the mean of its divisors is an integer number (5837080656).

Almost surely, 2^66551562035 is an apocalyptic number.

66551562035 is a deficient number, since it is larger than the sum of its proper divisors (26841728461).

66551562035 is a wasteful number, since it uses less digits than its factorization.

66551562035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44220362.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 66551562035 in words is "sixty-six billion, five hundred fifty-one million, five hundred sixty-two thousand, thirty-five".