65551112270 has 64 divisors (see below), whose sum is σ = 137906689536. Its totient is φ = 21970016640.

The previous prime is 65551112251. The next prime is 65551112273. The reversal of 65551112270 is 7221115556.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65551112270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65551112273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561044 + ... + 667736.

It is an arithmetic number, because the mean of its divisors is an integer number (2154792024).

Almost surely, 2^65551112270 is an apocalyptic number.

65551112270 is an abundant number, since it is smaller than the sum of its proper divisors (72355577266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65551112270 is a wasteful number, since it uses less digits than its factorization.

65551112270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106905.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 65551112270 in words is "sixty-five billion, five hundred fifty-one million, one hundred twelve thousand, two hundred seventy".