2037396661 has 2 divisors, whose sum is σ = 2037396662. Its totient is φ = 2037396660.

The previous prime is 2037396659. The next prime is 2037396689. The reversal of 2037396661 is 1666937302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1504664100 + 532732561 = 38790^2 + 23081^2 .

It is a cyclic number.

It is not a de Polignac number, because 2037396661 - 2¹ = 2037396659 is a prime.

Together with 2037396659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2037396761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018698330 + 1018698331.

It is an arithmetic number, because the mean of its divisors is an integer number (1018698331).

Almost surely, 2^2037396661 is an apocalyptic number.

It is an amenable number.

2037396661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2037396661 is an equidigital number, since it uses as much as digits as its factorization.

2037396661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 2037396661 is about 45137.5305150825. The cubic root of 2037396661 is about 1267.7254140189.

The spelling of 2037396661 in words is "two billion, thirty-seven million, three hundred ninety-six thousand, six hundred sixty-one".