1450665115665 has 16 divisors (see below), whose sum is σ = 2330095569408. Its totient is φ = 770677600256.

The previous prime is 1450665115663. The next prime is 1450665115673. The reversal of 1450665115665 is 5665115660541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1450665115665 - 2¹ = 1450665115663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1450665115663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188149857 + ... + 188157566.

It is an arithmetic number, because the mean of its divisors is an integer number (145630973088).

Almost surely, 2^{1450665115665} is an apocalyptic number.

1450665115665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1450665115665 is a deficient number, since it is larger than the sum of its proper divisors (879430453743).

1450665115665 is a wasteful number, since it uses less digits than its factorization.

1450665115665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376307688.

The product of its (nonzero) digits is 3240000, while the sum is 51.

The spelling of 1450665115665 in words is "one trillion, four hundred fifty billion, six hundred sixty-five million, one hundred fifteen thousand, six hundred sixty-five".