667222155030 has 16 divisors (see below), whose sum is σ = 1601333172144. Its totient is φ = 177925908000.

The previous prime is 667222155007. The next prime is 667222155031. The reversal of 667222155030 is 30551222766.

It is a happy number.

667222155030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 667222155030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667222155031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11120369221 + ... + 11120369280.

It is an arithmetic number, because the mean of its divisors is an integer number (100083323259).

Almost surely, 2^667222155030 is an apocalyptic number.

667222155030 is an abundant number, since it is smaller than the sum of its proper divisors (934111017114).

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

667222155030 is a wasteful number, since it uses less digits than its factorization.

667222155030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240738511.

The product of its (nonzero) digits is 151200, while the sum is 39.

Adding to 667222155030 its reverse (30551222766), we get a palindrome (697773377796).

The spelling of 667222155030 in words is "six hundred sixty-seven billion, two hundred twenty-two million, one hundred fifty-five thousand, thirty".