22154640542 has 8 divisors (see below), whose sum is σ = 33237174936. Its totient is φ = 11075582232.

The previous prime is 22154640527. The next prime is 22154640583. The reversal of 22154640542 is 24504645122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853028 + ... + 878615.

It is an arithmetic number, because the mean of its divisors is an integer number (4154646867).

Almost surely, 2^22154640542 is an apocalyptic number.

22154640542 is a deficient number, since it is larger than the sum of its proper divisors (11082534394).

22154640542 is a wasteful number, since it uses less digits than its factorization.

22154640542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738042.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 22154640542 in words is "twenty-two billion, one hundred fifty-four million, six hundred forty thousand, five hundred forty-two".