7666364564 has 24 divisors (see below), whose sum is σ = 13987179360. Its totient is φ = 3673391904.

The previous prime is 7666364561. The next prime is 7666364567. The reversal of 7666364564 is 4654636667.

It is an interprime number because it is at equal distance from previous prime (7666364561) and next prime (7666364567).

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666364561) 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, 411374 + ... + 429605.

It is an arithmetic number, because the mean of its divisors is an integer number (582799140).

Almost surely, 2^7666364564 is an apocalyptic number.

It is an amenable number.

7666364564 is a deficient number, since it is larger than the sum of its proper divisors (6320814796).

7666364564 is a wasteful number, since it uses less digits than its factorization.

7666364564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841079 (or 841077 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 53.

The square root of 7666364564 is about 87557.7784323015. The cubic root of 7666364564 is about 1971.8013331427.

The spelling of 7666364564 in words is "seven billion, six hundred sixty-six million, three hundred sixty-four thousand, five hundred sixty-four".