221597460755 has 8 divisors (see below), whose sum is σ = 290091221424. Its totient is φ = 161161789600.

The previous prime is 221597460719. The next prime is 221597460781. The reversal of 221597460755 is 557064795122.

221597460755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 221597460755 - 2³² = 217302493459 is a prime.

It is a super-2 number, since 2×221597460755² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221597460697 and 221597460706.

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 7 ways as a sum of consecutive naturals, for example, 2014522316 + ... + 2014522425.

It is an arithmetic number, because the mean of its divisors is an integer number (36261402678).

Almost surely, 2^221597460755 is an apocalyptic number.

221597460755 is a deficient number, since it is larger than the sum of its proper divisors (68493760669).

221597460755 is a wasteful number, since it uses less digits than its factorization.

221597460755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029044757.

The product of its (nonzero) digits is 5292000, while the sum is 53.

The spelling of 221597460755 in words is "two hundred twenty-one billion, five hundred ninety-seven million, four hundred sixty thousand, seven hundred fifty-five".