816081601707 has 12 divisors (see below), whose sum is σ = 1178961272424. Its totient is φ = 543972830400.

The previous prime is 816081601697. The next prime is 816081601747. The reversal of 816081601707 is 707106180618.

It is a happy number.

It is not a de Polignac number, because 816081601707 - 2⁴ = 816081601691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (816081601747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6734169 + ... + 6854282.

It is an arithmetic number, because the mean of its divisors is an integer number (98246772702).

Almost surely, 2^816081601707 is an apocalyptic number.

816081601707 is a deficient number, since it is larger than the sum of its proper divisors (362879670717).

816081601707 is a wasteful number, since it uses less digits than its factorization.

816081601707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13595130 (or 13595127 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 816081601707 in words is "eight hundred sixteen billion, eighty-one million, six hundred one thousand, seven hundred seven".