221647652360157 has 16 divisors (see below), whose sum is σ = 296690593006080. Its totient is φ = 147185292038400.

The previous prime is 221647652360087. The next prime is 221647652360161. The reversal of 221647652360157 is 751063256746122.

It is not a de Polignac number, because 221647652360157 - 2¹⁵ = 221647652327389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221647652360097 and 221647652360106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221647652360177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45872269 + ... + 50473362.

It is an arithmetic number, because the mean of its divisors is an integer number (18543162062880).

Almost surely, 2^{221647652360157} is an apocalyptic number.

It is an amenable number.

221647652360157 is a deficient number, since it is larger than the sum of its proper divisors (75042940645923).

221647652360157 is a wasteful number, since it uses less digits than its factorization.

221647652360157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96348644.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 221647652360157 in words is "two hundred twenty-one trillion, six hundred forty-seven billion, six hundred fifty-two million, three hundred sixty thousand, one hundred fifty-seven".