7266566316436 has 72 divisors (see below), whose sum is σ = 15852996141696. Its totient is φ = 2898331571520.

The previous prime is 7266566316433. The next prime is 7266566316461. The reversal of 7266566316436 is 6346136656627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7266566316433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21616000 + ... + 21949591.

It is an arithmetic number, because the mean of its divisors is an integer number (220180501968).

Almost surely, 2^{7266566316436} is an apocalyptic number.

It is an amenable number.

7266566316436 is an abundant number, since it is smaller than the sum of its proper divisors (8586429825260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7266566316436 is a wasteful number, since it uses less digits than its factorization.

7266566316436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43565669 (or 43565660 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 61.

The spelling of 7266566316436 in words is "seven trillion, two hundred sixty-six billion, five hundred sixty-six million, three hundred sixteen thousand, four hundred thirty-six".