1563166126012 has 6 divisors (see below), whose sum is σ = 2735540720528. Its totient is φ = 781583063004.

The previous prime is 1563166126001. The next prime is 1563166126043. The reversal of 1563166126012 is 2106216613651.

It is a happy number.

It is a super-2 number, since 2×1563166126012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195395765748 + ... + 195395765755.

Almost surely, 2^{1563166126012} is an apocalyptic number.

It is an amenable number.

1563166126012 is a deficient number, since it is larger than the sum of its proper divisors (1172374594516).

1563166126012 is a wasteful number, since it uses less digits than its factorization.

1563166126012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390791531507 (or 390791531505 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 1563166126012 in words is "one trillion, five hundred sixty-three billion, one hundred sixty-six million, one hundred twenty-six thousand, twelve".