2015571072 has 64 divisors (see below), whose sum is σ = 5635663200. Its totient is φ = 636493824.

The previous prime is 2015571067. The next prime is 2015571083. The reversal of 2015571072 is 2701755102.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130833 + ... + 145424.

Almost surely, 2^2015571072 is an apocalyptic number.

It is an amenable number.

2015571072 is an abundant number, since it is smaller than the sum of its proper divisors (3620092128).

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

2015571072 is a wasteful number, since it uses less digits than its factorization.

2015571072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276293 (or 276281 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 2015571072 is about 44895.1118942809. Note that the first 3 decimals coincide. The cubic root of 2015571072 is about 1263.1823211300.

The spelling of 2015571072 in words is "two billion, fifteen million, five hundred seventy-one thousand, seventy-two".