22151515454 has 8 divisors (see below), whose sum is σ = 33249713328. Its totient is φ = 11068277680.

The previous prime is 22151515453. The next prime is 22151515481. The reversal of 22151515454 is 45451515122.

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

It is a super-2 number, since 2×22151515454² (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 (22151515453) by changing a digit.

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, 3736322 + ... + 3742245.

It is an arithmetic number, because the mean of its divisors is an integer number (4156214166).

Almost surely, 2^22151515454 is an apocalyptic number.

22151515454 is a deficient number, since it is larger than the sum of its proper divisors (11098197874).

22151515454 is a wasteful number, since it uses less digits than its factorization.

22151515454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480050.

The product of its digits is 40000, while the sum is 35.

The spelling of 22151515454 in words is "twenty-two billion, one hundred fifty-one million, five hundred fifteen thousand, four hundred fifty-four".