8615668001 has 2 divisors, whose sum is σ = 8615668002. Its totient is φ = 8615668000.

The previous prime is 8615667979. The next prime is 8615668037. The reversal of 8615668001 is 1008665168.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7100590225 + 1515077776 = 84265^2 + 38924^2 .

It is a cyclic number.

It is not a de Polignac number, because 8615668001 - 2²² = 8611473697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8615668001.

It is not a weakly prime, because it can be changed into another prime (8615668081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4307834000 + 4307834001.

It is an arithmetic number, because the mean of its divisors is an integer number (4307834001).

Almost surely, 2^8615668001 is an apocalyptic number.

It is an amenable number.

8615668001 is a deficient number, since it is larger than the sum of its proper divisors (1).

8615668001 is an equidigital number, since it uses as much as digits as its factorization.

8615668001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 8615668001 is about 92820.6227139206. The cubic root of 8615668001 is about 2050.0430687759.

The spelling of 8615668001 in words is "eight billion, six hundred fifteen million, six hundred sixty-eight thousand, one".