2015152422444 has 144 divisors (see below), whose sum is σ = 5965463702016. Its totient is φ = 561533817600.

The previous prime is 2015152422433. The next prime is 2015152422463. The reversal of 2015152422444 is 4442242515102.

2015152422444 is a `hidden beast` number, since 20 + 1 + 5 + 152 + 42 + 2 + 444 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2015152422399 and 2015152422408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33766159 + ... + 33825785.

It is an arithmetic number, because the mean of its divisors is an integer number (41426831264).

Almost surely, 2^{2015152422444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015152422444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2982731851008).

2015152422444 is an abundant number, since it is smaller than the sum of its proper divisors (3950311279572).

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

2015152422444 is a wasteful number, since it uses less digits than its factorization.

2015152422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62956 (or 62951 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 2015152422444 its reverse (4442242515102), we get a palindrome (6457394937546).

The spelling of 2015152422444 in words is "two trillion, fifteen billion, one hundred fifty-two million, four hundred twenty-two thousand, four hundred forty-four".