101065421659 has 2 divisors, whose sum is σ = 101065421660. Its totient is φ = 101065421658.

The previous prime is 101065421609. The next prime is 101065421669. The reversal of 101065421659 is 956124560101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (956124560101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101065421659 - 2⁷ = 101065421531 is a prime.

It is a super-2 number, since 2×101065421659² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101065421609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50532710829 + 50532710830.

It is an arithmetic number, because the mean of its divisors is an integer number (50532710830).

Almost surely, 2^101065421659 is an apocalyptic number.

101065421659 is a deficient number, since it is larger than the sum of its proper divisors (1).

101065421659 is an equidigital number, since it uses as much as digits as its factorization.

101065421659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 101065421659 in words is "one hundred one billion, sixty-five million, four hundred twenty-one thousand, six hundred fifty-nine".