1656651013 has 8 divisors (see below), whose sum is σ = 1715199480. Its totient is φ = 1598197440.

The previous prime is 1656651011. The next prime is 1656651127. The reversal of 1656651013 is 3101566561.

It can be written as a sum of positive squares in 4 ways, for example, as 682149924 + 974501089 = 26118^2 + 31217^2 .

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 1656651013 - 2¹ = 1656651011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1656651013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656651011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12783 + ... + 58963.

It is an arithmetic number, because the mean of its divisors is an integer number (214399935).

Almost surely, 2^1656651013 is an apocalyptic number.

It is an amenable number.

1656651013 is a deficient number, since it is larger than the sum of its proper divisors (58548467).

1656651013 is a wasteful number, since it uses less digits than its factorization.

1656651013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47447.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1656651013 is about 40701.9779986182. The cubic root of 1656651013 is about 1183.2513540686.

The spelling of 1656651013 in words is "one billion, six hundred fifty-six million, six hundred fifty-one thousand, thirteen".