1650199344672 has 96 divisors (see below), whose sum is σ = 4566363621120. Its totient is φ = 520361038080.

The previous prime is 1650199344617. The next prime is 1650199344697. The reversal of 1650199344672 is 2764439910561.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605743 + ... + 1915025.

It is an arithmetic number, because the mean of its divisors is an integer number (47566287720).

Almost surely, 2^{1650199344672} is an apocalyptic number.

1650199344672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650199344672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283181810560).

1650199344672 is an abundant number, since it is smaller than the sum of its proper divisors (2916164276448).

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

1650199344672 is a wasteful number, since it uses less digits than its factorization.

1650199344672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310006 (or 1309998 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 1650199344672 in words is "one trillion, six hundred fifty billion, one hundred ninety-nine million, three hundred forty-four thousand, six hundred seventy-two".