155373797401 has 2 divisors, whose sum is σ = 155373797402. Its totient is φ = 155373797400.

The previous prime is 155373797311. The next prime is 155373797441. The reversal of 155373797401 is 104797373551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86141663001 + 69232134400 = 293499^2 + 263120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155373797401 is a prime.

It is not a weakly prime, because it can be changed into another prime (155373797441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77686898700 + 77686898701.

It is an arithmetic number, because the mean of its divisors is an integer number (77686898701).

Almost surely, 2^155373797401 is an apocalyptic number.

It is an amenable number.

155373797401 is a deficient number, since it is larger than the sum of its proper divisors (1).

155373797401 is an equidigital number, since it uses as much as digits as its factorization.

155373797401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The spelling of 155373797401 in words is "one hundred fifty-five billion, three hundred seventy-three million, seven hundred ninety-seven thousand, four hundred one".