22161034653054 has 96 divisors (see below), whose sum is σ = 50139059757696. Its totient is φ = 6475748979840.

The previous prime is 22161034653047. The next prime is 22161034653061. The reversal of 22161034653054 is 45035643016122.

It is an interprime number because it is at equal distance from previous prime (22161034653047) and next prime (22161034653061).

It is a super-2 number, since 2×22161034653054² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22161034652997 and 22161034653015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43987809 + ... + 44488755.

It is an arithmetic number, because the mean of its divisors is an integer number (522281872476).

Almost surely, 2^{22161034653054} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22161034653054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25069529878848).

22161034653054 is an abundant number, since it is smaller than the sum of its proper divisors (27978025104642).

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

22161034653054 is a wasteful number, since it uses less digits than its factorization.

22161034653054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501818 (or 501789 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 22161034653054 its reverse (45035643016122), we get a palindrome (67196677669176).

The spelling of 22161034653054 in words is "twenty-two trillion, one hundred sixty-one billion, thirty-four million, six hundred fifty-three thousand, fifty-four".