2820955663 has 2 divisors, whose sum is σ = 2820955664. Its totient is φ = 2820955662.

The previous prime is 2820955619. The next prime is 2820955679. The reversal of 2820955663 is 3665590282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2820955663 - 2²⁵ = 2787401231 is a prime.

It is a super-2 number, since 2×2820955663² = 15915581705223539138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2820955693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410477831 + 1410477832.

It is an arithmetic number, because the mean of its divisors is an integer number (1410477832).

Almost surely, 2^2820955663 is an apocalyptic number.

2820955663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820955663 is an equidigital number, since it uses as much as digits as its factorization.

2820955663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 2820955663 is about 53112.6695149095. The cubic root of 2820955663 is about 1412.9672206746.

The spelling of 2820955663 in words is "two billion, eight hundred twenty million, nine hundred fifty-five thousand, six hundred sixty-three".