20345006215622 has 8 divisors (see below), whose sum is σ = 33291828352872. Its totient is φ = 9247730098000.

The previous prime is 20345006215613. The next prime is 20345006215657. The reversal of 20345006215622 is 22651260054302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462386504879 + ... + 462386504922.

It is an arithmetic number, because the mean of its divisors is an integer number (4161478544109).

Almost surely, 2^{20345006215622} is an apocalyptic number.

20345006215622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20345006215622 is a deficient number, since it is larger than the sum of its proper divisors (12946822137250).

20345006215622 is a wasteful number, since it uses less digits than its factorization.

20345006215622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924773009814.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 20345006215622 its reverse (22651260054302), we get a palindrome (42996266269924).

The spelling of 20345006215622 in words is "twenty trillion, three hundred forty-five billion, six million, two hundred fifteen thousand, six hundred twenty-two".