22651655354552 has 128 divisors (see below), whose sum is σ = 49816570890240. Its totient is φ = 9453774919680.

The previous prime is 22651655354551. The next prime is 22651655354561. The reversal of 22651655354552 is 25545355615622.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22651655354551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1473079088 + ... + 1473094464.

It is an arithmetic number, because the mean of its divisors is an integer number (389191960080).

Almost surely, 2^{22651655354552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22651655354552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24908285445120).

22651655354552 is an abundant number, since it is smaller than the sum of its proper divisors (27164915535688).

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

22651655354552 is a wasteful number, since it uses less digits than its factorization.

22651655354552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221 (or 17217 counting only the distinct ones).

The product of its digits is 54000000, while the sum is 56.

The spelling of 22651655354552 in words is "twenty-two trillion, six hundred fifty-one billion, six hundred fifty-five million, three hundred fifty-four thousand, five hundred fifty-two".