2151650515 has 24 divisors (see below), whose sum is σ = 3030147360. Its totient is φ = 1462341888.

The previous prime is 2151650507. The next prime is 2151650581. The reversal of 2151650515 is 5150561512.

It is not a de Polignac number, because 2151650515 - 2³ = 2151650507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11175 + ... + 66544.

It is an arithmetic number, because the mean of its divisors is an integer number (126256140).

Almost surely, 2^2151650515 is an apocalyptic number.

2151650515 is a deficient number, since it is larger than the sum of its proper divisors (878496845).

2151650515 is a wasteful number, since it uses less digits than its factorization.

2151650515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77851 (or 77844 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The square root of 2151650515 is about 46385.8870239645. The cubic root of 2151650515 is about 1290.9930688224.

The spelling of 2151650515 in words is "two billion, one hundred fifty-one million, six hundred fifty thousand, five hundred fifteen".