158195016877 has 2 divisors, whose sum is σ = 158195016878. Its totient is φ = 158195016876.

The previous prime is 158195016871. The next prime is 158195016887. The reversal of 158195016877 is 778610591851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155562403396 + 2632613481 = 394414^2 + 51309^2 .

It is a cyclic number.

It is not a de Polignac number, because 158195016877 - 2¹⁵ = 158194984109 is a prime.

It is a super-4 number, since 4×158195016877⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158195016871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79097508438 + 79097508439.

It is an arithmetic number, because the mean of its divisors is an integer number (79097508439).

Almost surely, 2^158195016877 is an apocalyptic number.

It is an amenable number.

158195016877 is a deficient number, since it is larger than the sum of its proper divisors (1).

158195016877 is an equidigital number, since it uses as much as digits as its factorization.

158195016877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 58.

The spelling of 158195016877 in words is "one hundred fifty-eight billion, one hundred ninety-five million, sixteen thousand, eight hundred seventy-seven".