82303690661 has 4 divisors (see below), whose sum is σ = 82306911072. Its totient is φ = 82300470252.

The previous prime is 82303690621. The next prime is 82303690669. The reversal of 82303690661 is 16609630328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82303690661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82303690669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571561 + ... + 1623086.

It is an arithmetic number, because the mean of its divisors is an integer number (20576727768).

Almost surely, 2^82303690661 is an apocalyptic number.

It is an amenable number.

82303690661 is a deficient number, since it is larger than the sum of its proper divisors (3220411).

82303690661 is a wasteful number, since it uses less digits than its factorization.

82303690661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220410.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 82303690661 in words is "eighty-two billion, three hundred three million, six hundred ninety thousand, six hundred sixty-one".