1663000953560 has 32 divisors (see below), whose sum is σ = 3805171678800. Its totient is φ = 653925797760.

The previous prime is 1663000953533. The next prime is 1663000953587. The reversal of 1663000953560 is 653590003661.

It is an interprime number because it is at equal distance from previous prime (1663000953533) and next prime (1663000953587).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352328351 + ... + 352333070.

Almost surely, 2^{1663000953560} is an apocalyptic number.

1663000953560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663000953560 is an abundant number, since it is smaller than the sum of its proper divisors (2142170725240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663000953560 is a wasteful number, since it uses less digits than its factorization.

1663000953560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704661491 (or 704661487 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 1663000953560 in words is "one trillion, six hundred sixty-three billion, nine hundred fifty-three thousand, five hundred sixty".