145426621164 has 48 divisors (see below), whose sum is σ = 370754568576. Its totient is φ = 43999897600.

The previous prime is 145426621097. The next prime is 145426621183. The reversal of 145426621164 is 461126624541.

It is a happy number.

It is a super-2 number, since 2×145426621164² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774762 + ... + 943985.

It is an arithmetic number, because the mean of its divisors is an integer number (7724053512).

Almost surely, 2^145426621164 is an apocalyptic number.

It is an amenable number.

145426621164 is an abundant number, since it is smaller than the sum of its proper divisors (225327947412).

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

145426621164 is a wasteful number, since it uses less digits than its factorization.

145426621164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719406 (or 1719404 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The spelling of 145426621164 in words is "one hundred forty-five billion, four hundred twenty-six million, six hundred twenty-one thousand, one hundred sixty-four".