1356720549912 has 576 divisors, whose sum is σ = 4758038064000. Its totient is φ = 356995102464.

The previous prime is 1356720549901. The next prime is 1356720549923. The reversal of 1356720549912 is 2199450276531.

1356720549912 is a `hidden beast` number, since 1 + 3 + 5 + 6 + 7 + 2 + 0 + 549 + 91 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1356720549901) and next prime (1356720549923).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1536489423 + ... + 1536490305.

It is an arithmetic number, because the mean of its divisors is an integer number (8260482750).

Almost surely, 2^{1356720549912} is an apocalyptic number.

1356720549912 is a gapful number since it is divisible by the number (12) 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 1356720549912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379019032000).

1356720549912 is an abundant number, since it is smaller than the sum of its proper divisors (3401317514088).

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

1356720549912 is a wasteful number, since it uses less digits than its factorization.

1356720549912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 1356720549912 in words is "one trillion, three hundred fifty-six billion, seven hundred twenty million, five hundred forty-nine thousand, nine hundred twelve".