1651662536 has 16 divisors (see below), whose sum is σ = 3180566940. Its totient is φ = 803511360.

The previous prime is 1651662521. The next prime is 1651662539. The reversal of 1651662536 is 6352661561.

It can be written as a sum of positive squares in 2 ways, for example, as 1466430436 + 185232100 = 38294^2 + 13610^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1651662493 and 1651662502.

It is not an unprimeable number, because it can be changed into a prime (1651662539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789675 + ... + 2790266.

Almost surely, 2^1651662536 is an apocalyptic number.

It is an amenable number.

1651662536 is a deficient number, since it is larger than the sum of its proper divisors (1528904404).

1651662536 is a wasteful number, since it uses less digits than its factorization.

1651662536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579984 (or 5579980 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 1651662536 is about 40640.6512743091. The cubic root of 1651662536 is about 1182.0624984251.

The spelling of 1651662536 in words is "one billion, six hundred fifty-one million, six hundred sixty-two thousand, five hundred thirty-six".