162626689421 has 12 divisors (see below), whose sum is σ = 197403116832. Its totient is φ = 133333682328.

The previous prime is 162626689411. The next prime is 162626689469. The reversal of 162626689421 is 124986626261.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-162626689421 is a prime.

It is a super-2 number, since 2×162626689421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162626689411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72149135 + ... + 72151388.

It is an arithmetic number, because the mean of its divisors is an integer number (16450259736).

Almost surely, 2^162626689421 is an apocalyptic number.

It is an amenable number.

162626689421 is a deficient number, since it is larger than the sum of its proper divisors (34776427411).

162626689421 is a wasteful number, since it uses less digits than its factorization.

162626689421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144300560 (or 144300553 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 162626689421 in words is "one hundred sixty-two billion, six hundred twenty-six million, six hundred eighty-nine thousand, four hundred twenty-one".