3656672545 has 16 divisors (see below), whose sum is σ = 4653376128. Its totient is φ = 2748962560.

The previous prime is 3656672527. The next prime is 3656672557. The reversal of 3656672545 is 5452766563.

3656672545 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 3656672545 - 2¹³ = 3656664353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21750 + ... + 88240.

It is an arithmetic number, because the mean of its divisors is an integer number (290836008).

Almost surely, 2^3656672545 is an apocalyptic number.

It is an amenable number.

3656672545 is a deficient number, since it is larger than the sum of its proper divisors (996703583).

3656672545 is a wasteful number, since it uses less digits than its factorization.

3656672545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67160.

The product of its digits is 4536000, while the sum is 49.

The square root of 3656672545 is about 60470.4270284244. The cubic root of 3656672545 is about 1540.6193810618.

The spelling of 3656672545 in words is "three billion, six hundred fifty-six million, six hundred seventy-two thousand, five hundred forty-five".