19105161145650 has 48 divisors (see below), whose sum is σ = 52645332938400. Its totient is φ = 5094709638480.

The previous prime is 19105161145627. The next prime is 19105161145657. The reversal of 19105161145650 is 5654116150191.

19105161145650 is a `hidden beast` number, since 1 + 9 + 10 + 5 + 1 + 61 + 14 + 565 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 19105161145596 and 19105161145605.

It is not an unprimeable number, because it can be changed into a prime (19105161145657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7075984260 + ... + 7075986959.

It is an arithmetic number, because the mean of its divisors is an integer number (1096777769550).

Almost surely, 2^{19105161145650} is an apocalyptic number.

19105161145650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19105161145650 is an abundant number, since it is smaller than the sum of its proper divisors (33540171792750).

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

19105161145650 is a wasteful number, since it uses less digits than its factorization.

19105161145650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14151971240 (or 14151971229 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 19105161145650 in words is "nineteen trillion, one hundred five billion, one hundred sixty-one million, one hundred forty-five thousand, six hundred fifty".