10645440632399 has 2 divisors, whose sum is σ = 10645440632400. Its totient is φ = 10645440632398.

The previous prime is 10645440632369. The next prime is 10645440632417. The reversal of 10645440632399 is 99323604454601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10645440632399 - 2³² = 10641145665103 is a prime.

It is a super-2 number, since 2×10645440632399² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10645440632369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322720316199 + 5322720316200.

It is an arithmetic number, because the mean of its divisors is an integer number (5322720316200).

Almost surely, 2^{10645440632399} is an apocalyptic number.

10645440632399 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645440632399 is an equidigital number, since it uses as much as digits as its factorization.

10645440632399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 10645440632399 in words is "ten trillion, six hundred forty-five billion, four hundred forty million, six hundred thirty-two thousand, three hundred ninety-nine".