2040521615 has 12 divisors (see below), whose sum is σ = 2691465672. Its totient is φ = 1484015280.

The previous prime is 2040521597. The next prime is 2040521617. The reversal of 2040521615 is 5161250402.

It is not a de Polignac number, because 2040521615 - 2²⁴ = 2023744399 is a prime.

It is a super-2 number, since 2×2040521615² = 8327456922564416450, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040521617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685777 + ... + 1686986.

It is an arithmetic number, because the mean of its divisors is an integer number (224288806).

Almost surely, 2^2040521615 is an apocalyptic number.

2040521615 is a deficient number, since it is larger than the sum of its proper divisors (650944057).

2040521615 is a wasteful number, since it uses less digits than its factorization.

2040521615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372790 (or 3372779 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2040521615 is about 45172.1331685808. The cubic root of 2040521615 is about 1268.3732276367.

The spelling of 2040521615 in words is "two billion, forty million, five hundred twenty-one thousand, six hundred fifteen".