22051662614520 has 256 divisors, whose sum is σ = 82571962982400. Its totient is φ = 4576996047360.

The previous prime is 22051662614507. The next prime is 22051662614521. The reversal of 22051662614520 is 2541626615022.

It is a happy number.

It is a super-2 number, since 2×22051662614520² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22051662614521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6850591 + ... + 9541169.

It is an arithmetic number, because the mean of its divisors is an integer number (322546730400).

Almost surely, 2^{22051662614520} is an apocalyptic number.

22051662614520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22051662614520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41285981491200).

22051662614520 is an abundant number, since it is smaller than the sum of its proper divisors (60520300367880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22051662614520 is a wasteful number, since it uses less digits than its factorization.

22051662614520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691498 (or 2691494 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 22051662614520 in words is "twenty-two trillion, fifty-one billion, six hundred sixty-two million, six hundred fourteen thousand, five hundred twenty".