66155506060244 has 12 divisors (see below), whose sum is σ = 116144393278368. Its totient is φ = 32971393695000.

The previous prime is 66155506060223. The next prime is 66155506060253. The reversal of 66155506060244 is 44206060555166.

It is a super-2 number, since 2×66155506060244² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66155506060192 and 66155506060201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26589832382 + ... + 26589834869.

It is an arithmetic number, because the mean of its divisors is an integer number (9678699439864).

Almost surely, 2^{66155506060244} is an apocalyptic number.

It is an amenable number.

66155506060244 is a deficient number, since it is larger than the sum of its proper divisors (49988887218124).

66155506060244 is a wasteful number, since it uses less digits than its factorization.

66155506060244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53179667566 (or 53179667564 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 66155506060244 in words is "sixty-six trillion, one hundred fifty-five billion, five hundred six million, sixty thousand, two hundred forty-four".