37666061 has 4 divisors (see below), whose sum is σ = 37705824. Its totient is φ = 37626300.

The previous prime is 37666051. The next prime is 37666103. The reversal of 37666061 is 16066673.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37666061 - 2¹⁰ = 37665037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37666001) 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, 18425 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (9426456).

Almost surely, 2^37666061 is an apocalyptic number.

It is an amenable number.

37666061 is a deficient number, since it is larger than the sum of its proper divisors (39763).

37666061 is an equidigital number, since it uses as much as digits as its factorization.

37666061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39762.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 37666061 is about 6137.2682033621. The cubic root of 37666061 is about 335.2098217731.

The spelling of 37666061 in words is "thirty-seven million, six hundred sixty-six thousand, sixty-one".