1663901542930 has 32 divisors (see below), whose sum is σ = 3297272806080. Its totient is φ = 599504137920.

The previous prime is 1663901542921. The next prime is 1663901542939. The reversal of 1663901542930 is 392451093661.

It is an interprime number because it is at equal distance from previous prime (1663901542921) and next prime (1663901542939).

It is not an unprimeable number, because it can be changed into a prime (1663901542939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69375064 + ... + 69399043.

It is an arithmetic number, because the mean of its divisors is an integer number (103039775190).

Almost surely, 2^{1663901542930} is an apocalyptic number.

1663901542930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663901542930 is a deficient number, since it is larger than the sum of its proper divisors (1633371263150).

1663901542930 is a wasteful number, since it uses less digits than its factorization.

1663901542930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138774234.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 1663901542930 in words is "one trillion, six hundred sixty-three billion, nine hundred one million, five hundred forty-two thousand, nine hundred thirty".