145323221622 has 16 divisors (see below), whose sum is σ = 290698053120. Its totient is φ = 48432472232.

The previous prime is 145323221557. The next prime is 145323221663. The reversal of 145323221622 is 226122323541.

145323221622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145323221622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2113758 + ... + 2181425.

It is an arithmetic number, because the mean of its divisors is an integer number (18168628320).

Almost surely, 2^145323221622 is an apocalyptic number.

145323221622 is an abundant number, since it is smaller than the sum of its proper divisors (145374831498).

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

145323221622 is a wasteful number, since it uses less digits than its factorization.

145323221622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300827.

The product of its digits is 34560, while the sum is 33.

The spelling of 145323221622 in words is "one hundred forty-five billion, three hundred twenty-three million, two hundred twenty-one thousand, six hundred twenty-two".