2015457216 has 56 divisors (see below), whose sum is σ = 5336346960. Its totient is φ = 671342592.

The previous prime is 2015457209. The next prime is 2015457247. The reversal of 2015457216 is 6127545102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359910 + ... + 365466.

It is an arithmetic number, because the mean of its divisors is an integer number (95291910).

Almost surely, 2^2015457216 is an apocalyptic number.

It is an amenable number.

2015457216 is an abundant number, since it is smaller than the sum of its proper divisors (3320889744).

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

2015457216 is a wasteful number, since it uses less digits than its factorization.

2015457216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461 (or 7451 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 2015457216 is about 44893.8438541411. The cubic root of 2015457216 is about 1263.1585357131.

The spelling of 2015457216 in words is "two billion, fifteen million, four hundred fifty-seven thousand, two hundred sixteen".