810096661 has 8 divisors (see below), whose sum is σ = 891563904. Its totient is φ = 729933120.

The previous prime is 810096589. The next prime is 810096667. The reversal of 810096661 is 166690018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 810096661 - 2¹³ = 810088469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 810096661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810096667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324621 + ... + 327106.

It is an arithmetic number, because the mean of its divisors is an integer number (111445488).

Almost surely, 2^810096661 is an apocalyptic number.

It is an amenable number.

810096661 is a deficient number, since it is larger than the sum of its proper divisors (81467243).

810096661 is a wasteful number, since it uses less digits than its factorization.

810096661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651851.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 810096661 is about 28462.1970515278. The cubic root of 810096661 is about 932.2068303361.

The spelling of 810096661 in words is "eight hundred ten million, ninety-six thousand, six hundred sixty-one".