1656565002 has 12 divisors (see below), whose sum is σ = 3589224210. Its totient is φ = 552188328.

The previous prime is 1656564991. The next prime is 1656565003. The reversal of 1656565002 is 2005656561.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1476173241 + 180391761 = 38421^2 + 13431^2 .

It is not an unprimeable number, because it can be changed into a prime (1656565003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46015677 + ... + 46015712.

Almost surely, 2^1656565002 is an apocalyptic number.

1656565002 is an abundant number, since it is smaller than the sum of its proper divisors (1932659208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656565002 is a wasteful number, since it uses less digits than its factorization.

1656565002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92031397 (or 92031394 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1656565002 is about 40700.9213900619. The cubic root of 1656565002 is about 1183.2308761299.

The spelling of 1656565002 in words is "one billion, six hundred fifty-six million, five hundred sixty-five thousand, two".