1445022421164 has 192 divisors, whose sum is σ = 4561222579200. Its totient is φ = 386192987136.

The previous prime is 1445022421049. The next prime is 1445022421207. The reversal of 1445022421164 is 4611242205441.

1445022421164 is a `hidden beast` number, since 1 + 4 + 4 + 50 + 22 + 421 + 164 = 666.

It is a super-2 number, since 2×1445022421164² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1749982 + ... + 2439770.

It is an arithmetic number, because the mean of its divisors is an integer number (23756367600).

Almost surely, 2^{1445022421164} is an apocalyptic number.

1445022421164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445022421164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2280611289600).

1445022421164 is an abundant number, since it is smaller than the sum of its proper divisors (3116200158036).

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

1445022421164 is a wasteful number, since it uses less digits than its factorization.

1445022421164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689989 (or 689981 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 1445022421164 in words is "one trillion, four hundred forty-five billion, twenty-two million, four hundred twenty-one thousand, one hundred sixty-four".