10198740646 has 16 divisors (see below), whose sum is σ = 15490958400. Its totient is φ = 5035424128.

The previous prime is 10198740593. The next prime is 10198740653. The reversal of 10198740646 is 64604789101.

It is a junction number, because it is equal to n+sod(n) for n = 10198740596 and 10198740605.

It is a congruent number.

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, 23086 + ... + 144673.

It is an arithmetic number, because the mean of its divisors is an integer number (968184900).

Almost surely, 2^10198740646 is an apocalyptic number.

10198740646 is a deficient number, since it is larger than the sum of its proper divisors (5292217754).

10198740646 is a wasteful number, since it uses less digits than its factorization.

10198740646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168143.

The product of its (nonzero) digits is 290304, while the sum is 46.

It can be divided in two parts, 10198740 and 646, that added together give a triangular number (10199386 = T₄₅₁₆).

The spelling of 10198740646 in words is "ten billion, one hundred ninety-eight million, seven hundred forty thousand, six hundred forty-six".