816169696106 has 4 divisors (see below), whose sum is σ = 1224254544162. Its totient is φ = 408084848052.

The previous prime is 816169696081. The next prime is 816169696127. The reversal of 816169696106 is 601696961618.

It is a happy number.

816169696106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 815562517225 + 607178881 = 903085^2 + 24641^2 .

It is a super-2 number, since 2×816169696106² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204042424025 + ... + 204042424028.

Almost surely, 2^816169696106 is an apocalyptic number.

816169696106 is a deficient number, since it is larger than the sum of its proper divisors (408084848056).

816169696106 is a wasteful number, since it uses less digits than its factorization.

816169696106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408084848055.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 816169696106 in words is "eight hundred sixteen billion, one hundred sixty-nine million, six hundred ninety-six thousand, one hundred six".