221772503445757 has 8 divisors (see below), whose sum is σ = 244651995630720. Its totient is φ = 199346070512160.

The previous prime is 221772503445671. The next prime is 221772503445833. The reversal of 221772503445757 is 757544305277122.

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

It is not a de Polignac number, because 221772503445757 - 2⁷ = 221772503445629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221772503445695 and 221772503445704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221772503425757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113264811813 + ... + 113264813770.

It is an arithmetic number, because the mean of its divisors is an integer number (30581499453840).

Almost surely, 2^{221772503445757} is an apocalyptic number.

It is an amenable number.

221772503445757 is a deficient number, since it is larger than the sum of its proper divisors (22879492184963).

221772503445757 is a wasteful number, since it uses less digits than its factorization.

221772503445757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226529625683.

The product of its (nonzero) digits is 115248000, while the sum is 61.

The spelling of 221772503445757 in words is "two hundred twenty-one trillion, seven hundred seventy-two billion, five hundred three million, four hundred forty-five thousand, seven hundred fifty-seven".