15650561561066 has 16 divisors (see below), whose sum is σ = 25098102154944. Its totient is φ = 7293465580224.

The previous prime is 15650561561051. The next prime is 15650561561093. The reversal of 15650561561066 is 66016516505651.

It is a junction number, because it is equal to n+sod(n) for n = 15650561560999 and 15650561561017.

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, 2234514140 + ... + 2234521143.

It is an arithmetic number, because the mean of its divisors is an integer number (1568631384684).

Almost surely, 2^{15650561561066} is an apocalyptic number.

15650561561066 is a deficient number, since it is larger than the sum of its proper divisors (9447540593878).

15650561561066 is a wasteful number, since it uses less digits than its factorization.

15650561561066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469035405.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 15650561561066 in words is "fifteen trillion, six hundred fifty billion, five hundred sixty-one million, five hundred sixty-one thousand, sixty-six".