1679999650560 has 2304 divisors, whose sum is σ = 7911751680000. Its totient is φ = 327024967680.

The previous prime is 1679999650529. The next prime is 1679999650561. The reversal of 1679999650560 is 650569999761.

1679999650560 is a `hidden beast` number, since 1 + 6 + 7 + 9 + 9 + 9 + 9 + 6 + 50 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a super-6 number, since 6×1679999650560⁶ (a number of 75 digits) contains 666666 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (1679999650561) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7533630609 + ... + 7533630831.

It is an arithmetic number, because the mean of its divisors is an integer number (3433920000).

Almost surely, 2^{1679999650560} is an apocalyptic number.

1679999650560 is a gapful number since it is divisible by the number (10) 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 1679999650560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3955875840000).

1679999650560 is an abundant number, since it is smaller than the sum of its proper divisors (6231752029440).

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

1679999650560 is a wasteful number, since it uses less digits than its factorization.

1679999650560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 248005800, while the sum is 72.

The spelling of 1679999650560 in words is "one trillion, six hundred seventy-nine billion, nine hundred ninety-nine million, six hundred fifty thousand, five hundred sixty".