155346192769 has 2 divisors, whose sum is σ = 155346192770. Its totient is φ = 155346192768.

The previous prime is 155346192719. The next prime is 155346192811. The reversal of 155346192769 is 967291643551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149295686544 + 6050506225 = 386388^2 + 77785^2 .

It is a cyclic number.

It is not a de Polignac number, because 155346192769 - 2⁷ = 155346192641 is a prime.

It is a super-2 number, since 2×155346192769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155346192709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77673096384 + 77673096385.

It is an arithmetic number, because the mean of its divisors is an integer number (77673096385).

Almost surely, 2^155346192769 is an apocalyptic number.

It is an amenable number.

155346192769 is a deficient number, since it is larger than the sum of its proper divisors (1).

155346192769 is an equidigital number, since it uses as much as digits as its factorization.

155346192769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 58.

The spelling of 155346192769 in words is "one hundred fifty-five billion, three hundred forty-six million, one hundred ninety-two thousand, seven hundred sixty-nine".