22148461551 has 16 divisors (see below), whose sum is σ = 30002805504. Its totient is φ = 14530331904.

The previous prime is 22148461549. The next prime is 22148461589. The reversal of 22148461551 is 15516484122.

It is a happy number.

It is not a de Polignac number, because 22148461551 - 2¹ = 22148461549 is a prime.

It is a super-2 number, since 2×22148461551² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22148461351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141535 + ... + 253631.

It is an arithmetic number, because the mean of its divisors is an integer number (1875175344).

Almost surely, 2^22148461551 is an apocalyptic number.

22148461551 is a deficient number, since it is larger than the sum of its proper divisors (7854343953).

22148461551 is a wasteful number, since it uses less digits than its factorization.

22148461551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113150.

The product of its digits is 76800, while the sum is 39.

The spelling of 22148461551 in words is "twenty-two billion, one hundred forty-eight million, four hundred sixty-one thousand, five hundred fifty-one".