7222161606 has 48 divisors (see below), whose sum is σ = 16100550144. Its totient is φ = 2157694000.

The previous prime is 7222161601. The next prime is 7222161641. The reversal of 7222161606 is 6061612227.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222161601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18510 + ... + 121601.

It is an arithmetic number, because the mean of its divisors is an integer number (335428128).

Almost surely, 2^7222161606 is an apocalyptic number.

7222161606 is an abundant number, since it is smaller than the sum of its proper divisors (8878388538).

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

7222161606 is a wasteful number, since it uses less digits than its factorization.

7222161606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140209 (or 140198 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 7222161606 is about 84983.3019245546. The cubic root of 7222161606 is about 1932.9579247375.

The spelling of 7222161606 in words is "seven billion, two hundred twenty-two million, one hundred sixty-one thousand, six hundred six".