216674306300957 has 2 divisors, whose sum is σ = 216674306300958. Its totient is φ = 216674306300956.

The previous prime is 216674306300869. The next prime is 216674306301121. The reversal of 216674306300957 is 759003603476612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215241351263236 + 1432955037721 = 14671106^2 + 1197061^2 .

It is a cyclic number.

It is not a de Polignac number, because 216674306300957 - 2²⁰ = 216674305252381 is a prime.

It is a super-2 number, since 2×216674306300957² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216674306300896 and 216674306300905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216674306309957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108337153150478 + 108337153150479.

It is an arithmetic number, because the mean of its divisors is an integer number (108337153150479).

Almost surely, 2^{216674306300957} is an apocalyptic number.

It is an amenable number.

216674306300957 is a deficient number, since it is larger than the sum of its proper divisors (1).

216674306300957 is an equidigital number, since it uses as much as digits as its factorization.

216674306300957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34292160, while the sum is 59.

The spelling of 216674306300957 in words is "two hundred sixteen trillion, six hundred seventy-four billion, three hundred six million, three hundred thousand, nine hundred fifty-seven".