155332230077 has 2 divisors, whose sum is σ = 155332230078. Its totient is φ = 155332230076.

The previous prime is 155332230041. The next prime is 155332230107. The reversal of 155332230077 is 770032233551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96212252761 + 59119977316 = 310181^2 + 243146^2 .

It is a cyclic number.

It is not a de Polignac number, because 155332230077 - 2¹⁰ = 155332229053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155332230077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155332236077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77666115038 + 77666115039.

It is an arithmetic number, because the mean of its divisors is an integer number (77666115039).

Almost surely, 2^155332230077 is an apocalyptic number.

It is an amenable number.

155332230077 is a deficient number, since it is larger than the sum of its proper divisors (1).

155332230077 is an equidigital number, since it uses as much as digits as its factorization.

155332230077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 38.

The spelling of 155332230077 in words is "one hundred fifty-five billion, three hundred thirty-two million, two hundred thirty thousand, seventy-seven".