561663511514662 has 16 divisors (see below), whose sum is σ = 845704768393152. Its totient is φ = 279763858402560.

The previous prime is 561663511514657. The next prime is 561663511514669. The reversal of 561663511514662 is 266415115366165.

It is a super-2 number, since 2×561663511514662² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561663511514597 and 561663511514606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561663511514669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483507393 + ... + 484667644.

It is an arithmetic number, because the mean of its divisors is an integer number (52856548024572).

Almost surely, 2^{561663511514662} is an apocalyptic number.

561663511514662 is a deficient number, since it is larger than the sum of its proper divisors (284041256878490).

561663511514662 is a wasteful number, since it uses less digits than its factorization.

561663511514662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968176143.

The product of its digits is 23328000, while the sum is 58.

The spelling of 561663511514662 in words is "five hundred sixty-one trillion, six hundred sixty-three billion, five hundred eleven million, five hundred fourteen thousand, six hundred sixty-two".