2661702400000 has 1152 divisors, whose sum is σ = 8291844288000. Its totient is φ = 833863680000.

The previous prime is 2661702399973. The next prime is 2661702400001. The reversal of 2661702400000 is 42071662.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661702400001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45113599971 + ... + 45113600029.

It is an arithmetic number, because the mean of its divisors is an integer number (7197781500).

Almost surely, 2^{2661702400000} is an apocalyptic number.

2661702400000 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 2661702400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4145922144000).

2661702400000 is an abundant number, since it is smaller than the sum of its proper divisors (5630141888000).

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

2661702400000 is an frugal number, since it uses more digits than its factorization.

2661702400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 2661702400000 its reverse (42071662), we get a palindrome (2661744471662).

The spelling of 2661702400000 in words is "two trillion, six hundred sixty-one billion, seven hundred two million, four hundred thousand".