3655420513 has 12 divisors (see below), whose sum is σ = 3800257108. Its totient is φ = 3513529440.

The previous prime is 3655420499. The next prime is 3655420541. The reversal of 3655420513 is 3150245563.

It can be written as a sum of positive squares in 2 ways, for example, as 1464057169 + 2191363344 = 38263^2 + 46812^2 .

It is not a de Polignac number, because 3655420513 - 2²⁵ = 3621866081 is a prime.

It is a super-2 number, since 2×3655420513² = 26724198253722366338, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3655420543) 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, 247723 + ... + 262063.

Almost surely, 2^3655420513 is an apocalyptic number.

It is an amenable number.

3655420513 is a deficient number, since it is larger than the sum of its proper divisors (144836595).

3655420513 is an equidigital number, since it uses as much as digits as its factorization.

3655420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14544 (or 14461 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 3655420513 is about 60460.0737098459. The cubic root of 3655420513 is about 1540.4435267449.

The spelling of 3655420513 in words is "three billion, six hundred fifty-five million, four hundred twenty thousand, five hundred thirteen".