1550366076461 has 2 divisors, whose sum is σ = 1550366076462. Its totient is φ = 1550366076460.

The previous prime is 1550366076443. The next prime is 1550366076499. The reversal of 1550366076461 is 1646706630551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1165989636100 + 384376440361 = 1079810^2 + 619981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550366076461 - 2¹⁸ = 1550365814317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550366072461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775183038230 + 775183038231.

It is an arithmetic number, because the mean of its divisors is an integer number (775183038231).

Almost surely, 2^{1550366076461} is an apocalyptic number.

It is an amenable number.

1550366076461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550366076461 is an equidigital number, since it uses as much as digits as its factorization.

1550366076461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 1550366076461 in words is "one trillion, five hundred fifty billion, three hundred sixty-six million, seventy-six thousand, four hundred sixty-one".