266020503464652 has 12 divisors (see below), whose sum is σ = 620714508084216. Its totient is φ = 88673501154880.

The previous prime is 266020503464609. The next prime is 266020503464657. The reversal of 266020503464652 is 256464305020662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×266020503464652² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266020503464595 and 266020503464604.

It is not an unprimeable number, because it can be changed into a prime (266020503464657) 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, 11084187644349 + ... + 11084187644372.

It is an arithmetic number, because the mean of its divisors is an integer number (51726209007018).

Almost surely, 2^{266020503464652} is an apocalyptic number.

It is an amenable number.

266020503464652 is an abundant number, since it is smaller than the sum of its proper divisors (354694004619564).

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

266020503464652 is a wasteful number, since it uses less digits than its factorization.

266020503464652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22168375288728 (or 22168375288726 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 51.

The spelling of 266020503464652 in words is "two hundred sixty-six trillion, twenty billion, five hundred three million, four hundred sixty-four thousand, six hundred fifty-two".