16012078447 has 2 divisors, whose sum is σ = 16012078448. Its totient is φ = 16012078446.

The previous prime is 16012078343. The next prime is 16012078483. The reversal of 16012078447 is 74487021061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16012078447 - 2²³ = 16003689839 is a prime.

It is a super-3 number, since 3×16012078447³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16012070447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8006039223 + 8006039224.

It is an arithmetic number, because the mean of its divisors is an integer number (8006039224).

Almost surely, 2^16012078447 is an apocalyptic number.

16012078447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16012078447 is an equidigital number, since it uses as much as digits as its factorization.

16012078447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 16012078447 in words is "sixteen billion, twelve million, seventy-eight thousand, four hundred forty-seven".