1656066147 has 8 divisors (see below), whose sum is σ = 2209419456. Its totient is φ = 1103378472.

The previous prime is 1656066127. The next prime is 1656066173. The reversal of 1656066147 is 7416606561.

It is a happy number.

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

It is not a de Polignac number, because 1656066147 - 2¹⁹ = 1655541859 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1656066099 and 1656066108.

It is not an unprimeable number, because it can be changed into a prime (1656066127) 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, 160573 + ... + 170574.

It is an arithmetic number, because the mean of its divisors is an integer number (276177432).

Almost surely, 2^1656066147 is an apocalyptic number.

1656066147 is a deficient number, since it is larger than the sum of its proper divisors (553353309).

1656066147 is a wasteful number, since it uses less digits than its factorization.

1656066147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332817.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1656066147 is about 40694.7926275586. The cubic root of 1656066147 is about 1183.1120922009.

The spelling of 1656066147 in words is "one billion, six hundred fifty-six million, sixty-six thousand, one hundred forty-seven".