3656640147 has 8 divisors (see below), whose sum is σ = 4876947600. Its totient is φ = 2437046400.

The previous prime is 3656640139. The next prime is 3656640161. The reversal of 3656640147 is 7410466563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3656640147 - 2³ = 3656640139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3656640099 and 3656640108.

It is not an unprimeable number, because it can be changed into a prime (3656640167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166354 + ... + 187047.

It is an arithmetic number, because the mean of its divisors is an integer number (609618450).

Almost surely, 2^3656640147 is an apocalyptic number.

3656640147 is a deficient number, since it is larger than the sum of its proper divisors (1220307453).

3656640147 is a wasteful number, since it uses less digits than its factorization.

3656640147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356853.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 3656640147 is about 60470.1591448212. The cubic root of 3656640147 is about 1540.6148311025.

The spelling of 3656640147 in words is "three billion, six hundred fifty-six million, six hundred forty thousand, one hundred forty-seven".