641046615 has 32 divisors (see below), whose sum is σ = 1124831232. Its totient is φ = 309168000.

The previous prime is 641046587. The next prime is 641046617. The reversal of 641046615 is 516640146.

It is a happy number.

641046615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641046615 - 2⁷ = 641046487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641046617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21345 + ... + 41685.

It is an arithmetic number, because the mean of its divisors is an integer number (35150976).

Almost surely, 2^641046615 is an apocalyptic number.

641046615 is a deficient number, since it is larger than the sum of its proper divisors (483784617).

641046615 is a wasteful number, since it uses less digits than its factorization.

641046615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20551.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 641046615 is about 25318.8983765092. The cubic root of 641046615 is about 862.2433834347.

The spelling of 641046615 in words is "six hundred forty-one million, forty-six thousand, six hundred fifteen".