20551461462154 has 8 divisors (see below), whose sum is σ = 35231076792288. Its totient is φ = 8807769198060.

The previous prime is 20551461462029. The next prime is 20551461462173. The reversal of 20551461462154 is 45126416415502.

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

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, 733980766492 + ... + 733980766519.

It is an arithmetic number, because the mean of its divisors is an integer number (4403884599036).

Almost surely, 2^{20551461462154} is an apocalyptic number.

20551461462154 is a deficient number, since it is larger than the sum of its proper divisors (14679615330134).

20551461462154 is a wasteful number, since it uses less digits than its factorization.

20551461462154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467961533020.

The product of its (nonzero) digits is 1152000, while the sum is 46.

Adding to 20551461462154 its reverse (45126416415502), we get a palindrome (65677877877656).

The spelling of 20551461462154 in words is "twenty trillion, five hundred fifty-one billion, four hundred sixty-one million, four hundred sixty-two thousand, one hundred fifty-four".