21160200662434 has 8 divisors (see below), whose sum is σ = 31746134551788. Its totient is φ = 10578155811840.

The previous prime is 21160200662411. The next prime is 21160200662479. The reversal of 21160200662434 is 43426600206112.

It can be written as a sum of positive squares in 2 ways, for example, as 20968660514025 + 191540148409 = 4579155^2 + 437653^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21160200662393 and 21160200662402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972246087 + ... + 972267850.

Almost surely, 2^{21160200662434} is an apocalyptic number.

21160200662434 is a deficient number, since it is larger than the sum of its proper divisors (10585933889354).

21160200662434 is a wasteful number, since it uses less digits than its factorization.

21160200662434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944519380.

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 21160200662434 its reverse (43426600206112), we get a palindrome (64586800868546).

The spelling of 21160200662434 in words is "twenty-one trillion, one hundred sixty billion, two hundred million, six hundred sixty-two thousand, four hundred thirty-four".