7273145166 has 192 divisors, whose sum is σ = 18618808320. Its totient is φ = 1881169920.

The previous prime is 7273145137. The next prime is 7273145171. The reversal of 7273145166 is 6615413727.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16796886 + ... + 16797318.

It is an arithmetic number, because the mean of its divisors is an integer number (96972960).

Almost surely, 2^7273145166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7273145166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9309404160).

7273145166 is an abundant number, since it is smaller than the sum of its proper divisors (11345663154).

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

7273145166 is a wasteful number, since it uses less digits than its factorization.

7273145166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 592 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 7273145166 is about 85282.7366235395. The cubic root of 7273145166 is about 1937.4957205927.

The spelling of 7273145166 in words is "seven billion, two hundred seventy-three million, one hundred forty-five thousand, one hundred sixty-six".