1002665652240 has 320 divisors, whose sum is σ = 3661414797312. Its totient is φ = 222247065600.

The previous prime is 1002665652217. The next prime is 1002665652253. The reversal of 1002665652240 is 422565662001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7207179 + ... + 7344981.

Almost surely, 2^{1002665652240} is an apocalyptic number.

1002665652240 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 1002665652240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830707398656).

1002665652240 is an abundant number, since it is smaller than the sum of its proper divisors (2658749145072).

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

1002665652240 is a wasteful number, since it uses less digits than its factorization.

1002665652240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137958 (or 137952 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 1002665652240 in words is "one trillion, two billion, six hundred sixty-five million, six hundred fifty-two thousand, two hundred forty".