266804006537 has 2 divisors, whose sum is σ = 266804006538. Its totient is φ = 266804006536.

The previous prime is 266804006507. The next prime is 266804006551. The reversal of 266804006537 is 735600408662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228774716416 + 38029290121 = 478304^2 + 195011^2 .

It is a cyclic number.

It is not a de Polignac number, because 266804006537 - 2¹⁴ = 266803990153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266804006491 and 266804006500.

It is not a weakly prime, because it can be changed into another prime (266804006507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133402003268 + 133402003269.

It is an arithmetic number, because the mean of its divisors is an integer number (133402003269).

Almost surely, 2^266804006537 is an apocalyptic number.

It is an amenable number.

266804006537 is a deficient number, since it is larger than the sum of its proper divisors (1).

266804006537 is an equidigital number, since it uses as much as digits as its factorization.

266804006537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 266804006537 in words is "two hundred sixty-six billion, eight hundred four million, six thousand, five hundred thirty-seven".