101656603969 has 2 divisors, whose sum is σ = 101656603970. Its totient is φ = 101656603968.

The previous prime is 101656603957. The next prime is 101656604009. The reversal of 101656603969 is 969306656101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86017850944 + 15638753025 = 293288^2 + 125055^2 .

It is a cyclic number.

It is not a de Polignac number, because 101656603969 - 2²¹ = 101654506817 is a prime.

It is a super-2 number, since 2×101656603969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101656603369) 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, 50828301984 + 50828301985.

It is an arithmetic number, because the mean of its divisors is an integer number (50828301985).

Almost surely, 2^101656603969 is an apocalyptic number.

It is an amenable number.

101656603969 is a deficient number, since it is larger than the sum of its proper divisors (1).

101656603969 is an equidigital number, since it uses as much as digits as its factorization.

101656603969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 101656603969 in words is "one hundred one billion, six hundred fifty-six million, six hundred three thousand, nine hundred sixty-nine".