145422546464 has 48 divisors (see below), whose sum is σ = 309197515032. Its totient is φ = 66927894528.

The previous prime is 145422546439. The next prime is 145422546481. The reversal of 145422546464 is 464645224541.

It can be written as a sum of positive squares in 4 ways, for example, as 46436802064 + 98985744400 = 215492^2 + 314620^2 .

It is a super-2 number, since 2×145422546464² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348299 + ... + 641994.

Almost surely, 2^145422546464 is an apocalyptic number.

It is an amenable number.

145422546464 is an abundant number, since it is smaller than the sum of its proper divisors (163774968568).

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

145422546464 is a wasteful number, since it uses less digits than its factorization.

145422546464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990669 (or 990661 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 47.

The spelling of 145422546464 in words is "one hundred forty-five billion, four hundred twenty-two million, five hundred forty-six thousand, four hundred sixty-four".