3646611345 has 64 divisors (see below), whose sum is σ = 6526485504. Its totient is φ = 1727066880.

The previous prime is 3646611341. The next prime is 3646611349. The reversal of 3646611345 is 5431166463.

It is an interprime number because it is at equal distance from previous prime (3646611341) and next prime (3646611349).

It is not a de Polignac number, because 3646611345 - 2² = 3646611341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (3646611341) by changing a digit.

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, 558550 + ... + 565040.

It is an arithmetic number, because the mean of its divisors is an integer number (101976336).

Almost surely, 2^3646611345 is an apocalyptic number.

It is an amenable number.

3646611345 is a deficient number, since it is larger than the sum of its proper divisors (2879874159).

3646611345 is a wasteful number, since it uses less digits than its factorization.

3646611345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622.

The product of its digits is 155520, while the sum is 39.

The square root of 3646611345 is about 60387.1786474579. The cubic root of 3646611345 is about 1539.2050972988.

The spelling of 3646611345 in words is "three billion, six hundred forty-six million, six hundred eleven thousand, three hundred forty-five".