157775655181219 has 2 divisors, whose sum is σ = 157775655181220. Its totient is φ = 157775655181218.

The previous prime is 157775655181093. The next prime is 157775655181229. The reversal of 157775655181219 is 912181556577751.

It is a strong prime.

It is an emirp because it is prime and its reverse (912181556577751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157775655181219 is a prime.

It is a super-2 number, since 2×157775655181219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157775655181229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78887827590609 + 78887827590610.

It is an arithmetic number, because the mean of its divisors is an integer number (78887827590610).

Almost surely, 2^{157775655181219} is an apocalyptic number.

157775655181219 is a deficient number, since it is larger than the sum of its proper divisors (1).

157775655181219 is an equidigital number, since it uses as much as digits as its factorization.

157775655181219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220000, while the sum is 70.

The spelling of 157775655181219 in words is "one hundred fifty-seven trillion, seven hundred seventy-five billion, six hundred fifty-five million, one hundred eighty-one thousand, two hundred nineteen".