2502661000000 has 784 divisors, whose sum is σ = 7721501163520. Its totient is φ = 785376000000.

The previous prime is 2502660999991. The next prime is 2502661000061. The reversal of 2502661000000 is 1662052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4122999697 + ... + 4123000303.

Almost surely, 2^{2502661000000} is an apocalyptic number.

2502661000000 is a gapful number since it is divisible by the number (20) 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 2502661000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3860750581760).

2502661000000 is an abundant number, since it is smaller than the sum of its proper divisors (5218840163520).

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

2502661000000 is an frugal number, since it uses more digits than its factorization.

2502661000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 2502661000000 its reverse (1662052), we get a palindrome (2502662662052).

The spelling of 2502661000000 in words is "two trillion, five hundred two billion, six hundred sixty-one million", and thus it is an aban number.