1366668892580 has 24 divisors (see below), whose sum is σ = 2870030250360. Its totient is φ = 546662685440.

The previous prime is 1366668892577. The next prime is 1366668892621. The reversal of 1366668892580 is 852988666631.

It can be written as a sum of positive squares in 4 ways, for example, as 11363133604 + 1355305758976 = 106598^2 + 1164176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1366668892580.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736926 + ... + 3197514.

It is an arithmetic number, because the mean of its divisors is an integer number (119584593765).

Almost surely, 2^{1366668892580} is an apocalyptic number.

1366668892580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366668892580 is an abundant number, since it is smaller than the sum of its proper divisors (1503361357780).

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

1366668892580 is a wasteful number, since it uses less digits than its factorization.

1366668892580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608959 (or 608957 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 68.

The spelling of 1366668892580 in words is "one trillion, three hundred sixty-six billion, six hundred sixty-eight million, eight hundred ninety-two thousand, five hundred eighty".