155335932797 has 2 divisors, whose sum is σ = 155335932798. Its totient is φ = 155335932796.

The previous prime is 155335932757. The next prime is 155335932803. The reversal of 155335932797 is 797239533551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120329896996 + 35006035801 = 346886^2 + 187099^2 .

It is a cyclic number.

It is not a de Polignac number, because 155335932797 - 2³² = 151040965501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155335932757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77667966398 + 77667966399.

It is an arithmetic number, because the mean of its divisors is an integer number (77667966399).

Almost surely, 2^155335932797 is an apocalyptic number.

It is an amenable number.

155335932797 is a deficient number, since it is larger than the sum of its proper divisors (1).

155335932797 is an equidigital number, since it uses as much as digits as its factorization.

155335932797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26790750, while the sum is 59.

The spelling of 155335932797 in words is "one hundred fifty-five billion, three hundred thirty-five million, nine hundred thirty-two thousand, seven hundred ninety-seven".