221760550152 has 48 divisors (see below), whose sum is σ = 600668422380. Its totient is φ = 73911945600.

The previous prime is 221760550147. The next prime is 221760550177. The reversal of 221760550152 is 251055067122.

221760550152 is a `hidden beast` number, since 2 + 21 + 76 + 0 + 550 + 15 + 2 = 666.

221760550152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216610191396 + 5150358756 = 465414^2 + 71766^2 .

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, 496902 + ... + 830922.

Almost surely, 2^221760550152 is an apocalyptic number.

It is an amenable number.

221760550152 is an abundant number, since it is smaller than the sum of its proper divisors (378907872228).

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

221760550152 is a wasteful number, since it uses less digits than its factorization.

221760550152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343254 (or 343247 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 221760550152 in words is "two hundred twenty-one billion, seven hundred sixty million, five hundred fifty thousand, one hundred fifty-two".