3640151515 has 64 divisors (see below), whose sum is σ = 5961618432. Its totient is φ = 2060121600.

The previous prime is 3640151491. The next prime is 3640151521. The reversal of 3640151515 is 5151510463.

It is a happy number.

It is not a de Polignac number, because 3640151515 - 2¹¹ = 3640149467 is a prime.

3640151515 is a modest number, since divided by 151515 gives 3640 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299344 + ... + 311266.

It is an arithmetic number, because the mean of its divisors is an integer number (93150288).

Almost surely, 2^3640151515 is an apocalyptic number.

3640151515 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3640151515 is a deficient number, since it is larger than the sum of its proper divisors (2321466917).

3640151515 is a wasteful number, since it uses less digits than its factorization.

3640151515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12020.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 3640151515 is about 60333.6681712624. The cubic root of 3640151515 is about 1538.2956794565.

Adding to 3640151515 its reverse (5151510463), we get a palindrome (8791661978).

The spelling of 3640151515 in words is "three billion, six hundred forty million, one hundred fifty-one thousand, five hundred fifteen".