385156663 has 2 divisors, whose sum is σ = 385156664. Its totient is φ = 385156662.

The previous prime is 385156649. The next prime is 385156691. The reversal of 385156663 is 366651583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385156663 - 2⁵ = 385156631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385156613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192578331 + 192578332.

It is an arithmetic number, because the mean of its divisors is an integer number (192578332).

Almost surely, 2^385156663 is an apocalyptic number.

385156663 is a deficient number, since it is larger than the sum of its proper divisors (1).

385156663 is an equidigital number, since it uses as much as digits as its factorization.

385156663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 385156663 is about 19625.4086072112. The cubic root of 385156663 is about 727.5772959443.

The spelling of 385156663 in words is "three hundred eighty-five million, one hundred fifty-six thousand, six hundred sixty-three".