21663411150034 has 16 divisors (see below), whose sum is σ = 32529843979200. Its totient is φ = 10820135728080.

The previous prime is 21663411149957. The next prime is 21663411150067. The reversal of 21663411150034 is 43005111436612.

It is a junction number, because it is equal to n+sod(n) for n = 21663411149975 and 21663411150002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5873617 + ... + 8821915.

It is an arithmetic number, because the mean of its divisors is an integer number (2033115248700).

Almost surely, 2^{21663411150034} is an apocalyptic number.

21663411150034 is a deficient number, since it is larger than the sum of its proper divisors (10866432829166).

21663411150034 is a wasteful number, since it uses less digits than its factorization.

21663411150034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952225.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 21663411150034 its reverse (43005111436612), we get a palindrome (64668522586646).

The spelling of 21663411150034 in words is "twenty-one trillion, six hundred sixty-three billion, four hundred eleven million, one hundred fifty thousand, thirty-four".