22461055356551 has 4 divisors (see below), whose sum is σ = 25669777550352. Its totient is φ = 19252333162752.

The previous prime is 22461055356527. The next prime is 22461055356563. The reversal of 22461055356551 is 15565355016422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22461055356551 - 2¹⁰ = 22461055355527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22461055356551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22461055356151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604361096890 + ... + 1604361096903.

It is an arithmetic number, because the mean of its divisors is an integer number (6417444387588).

Almost surely, 2^{22461055356551} is an apocalyptic number.

22461055356551 is a deficient number, since it is larger than the sum of its proper divisors (3208722193801).

22461055356551 is an equidigital number, since it uses as much as digits as its factorization.

22461055356551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208722193800.

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 22461055356551 in words is "twenty-two trillion, four hundred sixty-one billion, fifty-five million, three hundred fifty-six thousand, five hundred fifty-one".