1663366142372 has 24 divisors (see below), whose sum is σ = 3180112777632. Its totient is φ = 754981329600.

The previous prime is 1663366142363. The next prime is 1663366142381. The reversal of 1663366142372 is 2732416633661.

It is an interprime number because it is at equal distance from previous prime (1663366142363) and next prime (1663366142381).

It is a self number, because there is not a number n which added to its sum of digits gives 1663366142372.

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, 27323993 + ... + 27384800.

It is an arithmetic number, because the mean of its divisors is an integer number (132504699068).

Almost surely, 2^{1663366142372} is an apocalyptic number.

It is an amenable number.

1663366142372 is a deficient number, since it is larger than the sum of its proper divisors (1516746635260).

1663366142372 is a wasteful number, since it uses less digits than its factorization.

1663366142372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54709499 (or 54709497 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 50.

The spelling of 1663366142372 in words is "one trillion, six hundred sixty-three billion, three hundred sixty-six million, one hundred forty-two thousand, three hundred seventy-two".