1900163444630 has 16 divisors (see below), whose sum is σ = 3731230036944. Its totient is φ = 690968525280.

The previous prime is 1900163444623. The next prime is 1900163444639. The reversal of 1900163444630 is 364443610091.

It is a super-2 number, since 2×1900163444630² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900163444639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8637106457 + ... + 8637106676.

It is an arithmetic number, because the mean of its divisors is an integer number (233201877309).

Almost surely, 2^{1900163444630} is an apocalyptic number.

1900163444630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900163444630 is a deficient number, since it is larger than the sum of its proper divisors (1831066592314).

1900163444630 is a wasteful number, since it uses less digits than its factorization.

1900163444630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17274213151.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 1900163444630 in words is "one trillion, nine hundred billion, one hundred sixty-three million, four hundred forty-four thousand, six hundred thirty".