101550616691 has 2 divisors, whose sum is σ = 101550616692. Its totient is φ = 101550616690.

The previous prime is 101550616561. The next prime is 101550616709. The reversal of 101550616691 is 196616055101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101550616691 - 2¹⁰ = 101550615667 is a prime.

It is a super-3 number, since 3×101550616691³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (101550666691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50775308345 + 50775308346.

It is an arithmetic number, because the mean of its divisors is an integer number (50775308346).

Almost surely, 2^101550616691 is an apocalyptic number.

101550616691 is a deficient number, since it is larger than the sum of its proper divisors (1).

101550616691 is an equidigital number, since it uses as much as digits as its factorization.

101550616691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 41.

The spelling of 101550616691 in words is "one hundred one billion, five hundred fifty million, six hundred sixteen thousand, six hundred ninety-one".