7664618001 has 16 divisors (see below), whose sum is σ = 10341478784. Its totient is φ = 5048970624.

The previous prime is 7664617997. The next prime is 7664618009. The reversal of 7664618001 is 1008164667.

It is a happy number.

It is not a de Polignac number, because 7664618001 - 2² = 7664617997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7664618009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114075 + ... + 168351.

It is an arithmetic number, because the mean of its divisors is an integer number (646342424).

Almost surely, 2^7664618001 is an apocalyptic number.

It is an amenable number.

7664618001 is a deficient number, since it is larger than the sum of its proper divisors (2676860783).

7664618001 is a wasteful number, since it uses less digits than its factorization.

7664618001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54840.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 7664618001 is about 87547.8040901084. The cubic root of 7664618001 is about 1971.6515821629.

The spelling of 7664618001 in words is "seven billion, six hundred sixty-four million, six hundred eighteen thousand, one".