1012454661656 has 16 divisors (see below), whose sum is σ = 2010020284440. Its totient is φ = 476449252480.

The previous prime is 1012454661643. The next prime is 1012454661679. The reversal of 1012454661656 is 6561664542101.

It is a self number, because there is not a number n which added to its sum of digits gives 1012454661656.

It is a congruent number.

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, 3722259650 + ... + 3722259921.

Almost surely, 2^{1012454661656} is an apocalyptic number.

It is an amenable number.

1012454661656 is a deficient number, since it is larger than the sum of its proper divisors (997565622784).

1012454661656 is a wasteful number, since it uses less digits than its factorization.

1012454661656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444519594 (or 7444519590 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 1012454661656 in words is "one trillion, twelve billion, four hundred fifty-four million, six hundred sixty-one thousand, six hundred fifty-six".