36521466521 has 2 divisors, whose sum is σ = 36521466522. Its totient is φ = 36521466520.

The previous prime is 36521466517. The next prime is 36521466577. The reversal of 36521466521 is 12566412563.

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., 20592250000 + 15929216521 = 143500^2 + 126211^2 .

It is a cyclic number.

It is not a de Polignac number, because 36521466521 - 2² = 36521466517 is a prime.

It is a super-3 number, since 3×36521466521³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (36521406521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18260733260 + 18260733261.

It is an arithmetic number, because the mean of its divisors is an integer number (18260733261).

Almost surely, 2^36521466521 is an apocalyptic number.

It is an amenable number.

36521466521 is a deficient number, since it is larger than the sum of its proper divisors (1).

36521466521 is an equidigital number, since it uses as much as digits as its factorization.

36521466521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The spelling of 36521466521 in words is "thirty-six billion, five hundred twenty-one million, four hundred sixty-six thousand, five hundred twenty-one".