221655675057030 has 24 divisors (see below), whose sum is σ = 576304755148512. Its totient is φ = 59108180015184.

The previous prime is 221655675057007. The next prime is 221655675057053. The reversal of 221655675057030 is 30750576556122.

221655675057030 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 5 + 5 + 67 + 5 + 0 + 570 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (221655675057007) and next prime (221655675057053).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1231420416894 + ... + 1231420417073.

It is an arithmetic number, because the mean of its divisors is an integer number (24012698131188).

Almost surely, 2^{221655675057030} is an apocalyptic number.

221655675057030 is an abundant number, since it is smaller than the sum of its proper divisors (354649080091482).

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

221655675057030 is a wasteful number, since it uses less digits than its factorization.

221655675057030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462840833980 (or 2462840833977 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 54.

The spelling of 221655675057030 in words is "two hundred twenty-one trillion, six hundred fifty-five billion, six hundred seventy-five million, fifty-seven thousand, thirty".