23015216377 has 2 divisors, whose sum is σ = 23015216378. Its totient is φ = 23015216376.

The previous prime is 23015216351. The next prime is 23015216407. The reversal of 23015216377 is 77361251032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11751427216 + 11263789161 = 108404^2 + 106131^2 .

It is a cyclic number.

It is not a de Polignac number, because 23015216377 - 2²³ = 23006827769 is a prime.

It is a super-2 number, since 2×23015216377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23015216177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11507608188 + 11507608189.

It is an arithmetic number, because the mean of its divisors is an integer number (11507608189).

Almost surely, 2^23015216377 is an apocalyptic number.

It is an amenable number.

23015216377 is a deficient number, since it is larger than the sum of its proper divisors (1).

23015216377 is an equidigital number, since it uses as much as digits as its factorization.

23015216377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 23015216377 in words is "twenty-three billion, fifteen million, two hundred sixteen thousand, three hundred seventy-seven".