20418170097 has 32 divisors (see below), whose sum is σ = 29966307840. Its totient is φ = 12287784960.

The previous prime is 20418170081. The next prime is 20418170117. The reversal of 20418170097 is 79007181402.

It is not a de Polignac number, because 20418170097 - 2⁴ = 20418170081 is a prime.

It is a super-2 number, since 2×20418170097² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (20418170077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2725597 + ... + 2733077.

It is an arithmetic number, because the mean of its divisors is an integer number (936447120).

Almost surely, 2^20418170097 is an apocalyptic number.

It is an amenable number.

20418170097 is a deficient number, since it is larger than the sum of its proper divisors (9548137743).

20418170097 is a wasteful number, since it uses less digits than its factorization.

20418170097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 20418170097 in words is "twenty billion, four hundred eighteen million, one hundred seventy thousand, ninety-seven".