5665401457 has 2 divisors, whose sum is σ = 5665401458. Its totient is φ = 5665401456.

The previous prime is 5665401449. The next prime is 5665401481. The reversal of 5665401457 is 7541045665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2965455936 + 2699945521 = 54456^2 + 51961^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665401457 - 2³ = 5665401449 is a prime.

It is not a weakly prime, because it can be changed into another prime (5665401407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832700728 + 2832700729.

It is an arithmetic number, because the mean of its divisors is an integer number (2832700729).

Almost surely, 2^5665401457 is an apocalyptic number.

It is an amenable number.

5665401457 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665401457 is an equidigital number, since it uses as much as digits as its factorization.

5665401457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 5665401457 is about 75268.8611379234. The cubic root of 5665401457 is about 1782.6943852395.

The spelling of 5665401457 in words is "five billion, six hundred sixty-five million, four hundred one thousand, four hundred fifty-seven".