2661450632250 has 256 divisors, whose sum is σ = 6926937937920. Its totient is φ = 680061043200.

The previous prime is 2661450632233. The next prime is 2661450632279. The reversal of 2661450632250 is 522360541662.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1173995617 + ... + 1173997883.

It is an arithmetic number, because the mean of its divisors is an integer number (27058351320).

Almost surely, 2^{2661450632250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661450632250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463468968960).

2661450632250 is an abundant number, since it is smaller than the sum of its proper divisors (4265487305670).

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

2661450632250 is a wasteful number, since it uses less digits than its factorization.

2661450632250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006 (or 2996 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 2661450632250 in words is "two trillion, six hundred sixty-one billion, four hundred fifty million, six hundred thirty-two thousand, two hundred fifty".