22511551554406 has 4 divisors (see below), whose sum is σ = 33767327331612. Its totient is φ = 11255775777202.

The previous prime is 22511551554391. The next prime is 22511551554413. The reversal of 22511551554406 is 60445515511522.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5627887888600 + ... + 5627887888603.

It is an arithmetic number, because the mean of its divisors is an integer number (8441831832903).

Almost surely, 2^{22511551554406} is an apocalyptic number.

22511551554406 is a deficient number, since it is larger than the sum of its proper divisors (11255775777206).

22511551554406 is a wasteful number, since it uses less digits than its factorization.

22511551554406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11255775777205.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 22511551554406 in words is "twenty-two trillion, five hundred eleven billion, five hundred fifty-one million, five hundred fifty-four thousand, four hundred six".