816207386533 has 32 divisors (see below), whose sum is σ = 1035919807488. Its totient is φ = 624619036800.

The previous prime is 816207386531. The next prime is 816207386539. The reversal of 816207386533 is 335683702618.

It is not a de Polignac number, because 816207386533 - 2¹ = 816207386531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816207386531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1468641 + ... + 1946617.

It is an arithmetic number, because the mean of its divisors is an integer number (32372493984).

Almost surely, 2^816207386533 is an apocalyptic number.

It is an amenable number.

816207386533 is a deficient number, since it is larger than the sum of its proper divisors (219712420955).

816207386533 is a wasteful number, since it uses less digits than its factorization.

816207386533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478393.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 816207386533 in words is "eight hundred sixteen billion, two hundred seven million, three hundred eighty-six thousand, five hundred thirty-three".