32666651 has 2 divisors, whose sum is σ = 32666652. Its totient is φ = 32666650.

The previous prime is 32666633. The next prime is 32666657. The reversal of 32666651 is 15666623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32666651 - 2¹⁰ = 32665627 is a prime.

It is a super-2 number, since 2×32666651² = 2134220175111602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32666657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16333325 + 16333326.

It is an arithmetic number, because the mean of its divisors is an integer number (16333326).

Almost surely, 2^32666651 is an apocalyptic number.

32666651 is a deficient number, since it is larger than the sum of its proper divisors (1).

32666651 is an equidigital number, since it uses as much as digits as its factorization.

32666651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 32666651 is about 5715.4746959461. The cubic root of 32666651 is about 319.6697471737.

The spelling of 32666651 in words is "thirty-two million, six hundred sixty-six thousand, six hundred fifty-one".