1554775263061 has 2 divisors, whose sum is σ = 1554775263062. Its totient is φ = 1554775263060.

The previous prime is 1554775263043. The next prime is 1554775263073. The reversal of 1554775263061 is 1603625774551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525210180036 + 29565083025 = 1234994^2 + 171945^2 .

It is a cyclic number.

It is not a de Polignac number, because 1554775263061 - 2⁹ = 1554775262549 is a prime.

It is a super-2 number, since 2×1554775263061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1554775263091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777387631530 + 777387631531.

It is an arithmetic number, because the mean of its divisors is an integer number (777387631531).

Almost surely, 2^{1554775263061} is an apocalyptic number.

It is an amenable number.

1554775263061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1554775263061 is an equidigital number, since it uses as much as digits as its factorization.

1554775263061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 1554775263061 in words is "one trillion, five hundred fifty-four billion, seven hundred seventy-five million, two hundred sixty-three thousand, sixty-one".