10778315663 has 2 divisors, whose sum is σ = 10778315664. Its totient is φ = 10778315662.

The previous prime is 10778315657. The next prime is 10778315677. The reversal of 10778315663 is 36651387701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10778315663 - 2¹⁸ = 10778053519 is a prime.

It is a super-2 number, since 2×10778315663² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10778515663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5389157831 + 5389157832.

It is an arithmetic number, because the mean of its divisors is an integer number (5389157832).

Almost surely, 2^10778315663 is an apocalyptic number.

10778315663 is a deficient number, since it is larger than the sum of its proper divisors (1).

10778315663 is an equidigital number, since it uses as much as digits as its factorization.

10778315663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 10778315663 in words is "ten billion, seven hundred seventy-eight million, three hundred fifteen thousand, six hundred sixty-three".