440016665502949 has 2 divisors, whose sum is σ = 440016665502950. Its totient is φ = 440016665502948.

The previous prime is 440016665502941. The next prime is 440016665503027. The reversal of 440016665502949 is 949205566610044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332988847072324 + 107027818430625 = 18247982^2 + 10345425^2 .

It is a cyclic number.

It is not a de Polignac number, because 440016665502949 - 2³ = 440016665502941 is a prime.

It is a super-2 number, since 2×440016665502949² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440016665502941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220008332751474 + 220008332751475.

It is an arithmetic number, because the mean of its divisors is an integer number (220008332751475).

Almost surely, 2^{440016665502949} is an apocalyptic number.

It is an amenable number.

440016665502949 is a deficient number, since it is larger than the sum of its proper divisors (1).

440016665502949 is an equidigital number, since it uses as much as digits as its factorization.

440016665502949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 61.

The spelling of 440016665502949 in words is "four hundred forty trillion, sixteen billion, six hundred sixty-five million, five hundred two thousand, nine hundred forty-nine".