1656630147 has 8 divisors (see below), whose sum is σ = 2222067456. Its totient is φ = 1097806472.

The previous prime is 1656630109. The next prime is 1656630163. The reversal of 1656630147 is 7410366561.

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

It is a cyclic number.

It is not a de Polignac number, because 1656630147 - 2²² = 1652435843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1656630187) 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, 1652823 + ... + 1653824.

It is an arithmetic number, because the mean of its divisors is an integer number (277758432).

Almost surely, 2^1656630147 is an apocalyptic number.

1656630147 is a deficient number, since it is larger than the sum of its proper divisors (565437309).

1656630147 is a wasteful number, since it uses less digits than its factorization.

1656630147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306817.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1656630147 is about 40701.7216712021. The cubic root of 1656630147 is about 1183.2463862497.

The spelling of 1656630147 in words is "one billion, six hundred fifty-six million, six hundred thirty thousand, one hundred forty-seven".