1245846666240 has 1760 divisors, whose sum is σ = 5125908224448. Its totient is φ = 289043251200.

The previous prime is 1245846666217. The next prime is 1245846666241. The reversal of 1245846666240 is 426666485421.

It is a tau number, because it is divible by the number of its divisors (1760).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245846666241) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20423715810 + ... + 20423715870.

Almost surely, 2^{1245846666240} is an apocalyptic number.

1245846666240 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 1245846666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2562954112224).

1245846666240 is an abundant number, since it is smaller than the sum of its proper divisors (3880061558208).

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

1245846666240 is an equidigital number, since it uses as much as digits as its factorization.

1245846666240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 1245846666240 in words is "one trillion, two hundred forty-five billion, eight hundred forty-six million, six hundred sixty-six thousand, two hundred forty".