20201626097 has 4 divisors (see below), whose sum is σ = 20201965056. Its totient is φ = 20201287140.

The previous prime is 20201626079. The next prime is 20201626103. The reversal of 20201626097 is 79062610202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79062610202 = 2 ⋅39531305101.

It is a cyclic number.

It is not a de Polignac number, because 20201626097 - 2⁶ = 20201626033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201626007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53729 + ... + 208062.

It is an arithmetic number, because the mean of its divisors is an integer number (5050491264).

Almost surely, 2^20201626097 is an apocalyptic number.

It is an amenable number.

20201626097 is a deficient number, since it is larger than the sum of its proper divisors (338959).

20201626097 is an equidigital number, since it uses as much as digits as its factorization.

20201626097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338958.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 20201626097 in words is "twenty billion, two hundred one million, six hundred twenty-six thousand, ninety-seven".