220745251044 has 36 divisors (see below), whose sum is σ = 559789164480. Its totient is φ = 73345149360.

The previous prime is 220745251037. The next prime is 220745251057. The reversal of 220745251044 is 440152547022.

220745251044 is a `hidden beast` number, since 2 + 20 + 7 + 4 + 525 + 104 + 4 = 666.

220745251044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9847024 + ... + 9869415.

Almost surely, 2^220745251044 is an apocalyptic number.

It is an amenable number.

220745251044 is an abundant number, since it is smaller than the sum of its proper divisors (339043913436).

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

220745251044 is a wasteful number, since it uses less digits than its factorization.

220745251044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19716760 (or 19716755 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 220745251044 its reverse (440152547022), we get a palindrome (660897798066).

The spelling of 220745251044 in words is "two hundred twenty billion, seven hundred forty-five million, two hundred fifty-one thousand, forty-four".