16949173650 has 24 divisors (see below), whose sum is σ = 42033951024. Its totient is φ = 4519779600.

The previous prime is 16949173609. The next prime is 16949173663. The reversal of 16949173650 is 5637194961.

It is a junction number, because it is equal to n+sod(n) for n = 16949173593 and 16949173602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56497096 + ... + 56497395.

It is an arithmetic number, because the mean of its divisors is an integer number (1751414626).

Almost surely, 2^16949173650 is an apocalyptic number.

16949173650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16949173650 is an abundant number, since it is smaller than the sum of its proper divisors (25084777374).

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

16949173650 is a wasteful number, since it uses less digits than its factorization.

16949173650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112994506 (or 112994501 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 16949173650 in words is "sixteen billion, nine hundred forty-nine million, one hundred seventy-three thousand, six hundred fifty".