1299964825600 has 351 divisors, whose sum is σ = 3757189559727. Its totient is φ = 444826583040.

The previous prime is 1299964825583. The next prime is 1299964825657. The reversal of 1299964825600 is 65284699921.

The square root of 1299964825600 is 1140160.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 49575694336 + 1250389131264 = 222656^2 + 1118208^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2553958146 + ... + 2553958654.

Almost surely, 2^{1299964825600} is an apocalyptic number.

1299964825600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1299964825600 is the 1140160-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299964825600

1299964825600 is an abundant number, since it is smaller than the sum of its proper divisors (2457224734127).

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

1299964825600 is an frugal number, since it uses more digits than its factorization.

1299964825600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 1299964825600 in words is "one trillion, two hundred ninety-nine billion, nine hundred sixty-four million, eight hundred twenty-five thousand, six hundred".