1515020332672 has 128 divisors (see below), whose sum is σ = 3771095040000. Its totient is φ = 588991011840.

The previous prime is 1515020332643. The next prime is 1515020332711. The reversal of 1515020332672 is 2762330205151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4397329 + ... + 4729327.

It is an arithmetic number, because the mean of its divisors is an integer number (29461680000).

Almost surely, 2^{1515020332672} 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 1515020332672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1885547520000).

1515020332672 is an abundant number, since it is smaller than the sum of its proper divisors (2256074707328).

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

1515020332672 is a wasteful number, since it uses less digits than its factorization.

1515020332672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332494 (or 332482 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 1515020332672 in words is "one trillion, five hundred fifteen billion, twenty million, three hundred thirty-two thousand, six hundred seventy-two".