1455161273556 has 24 divisors (see below), whose sum is σ = 3418164069600. Its totient is φ = 481798362912.

The previous prime is 1455161273551. The next prime is 1455161273581. The reversal of 1455161273556 is 6553721615541.

It is a junction number, because it is equal to n+sod(n) for n = 1455161273499 and 1455161273508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455161273551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406922506 + ... + 406926081.

It is an arithmetic number, because the mean of its divisors is an integer number (142423502900).

Almost surely, 2^{1455161273556} is an apocalyptic number.

It is an amenable number.

1455161273556 is an abundant number, since it is smaller than the sum of its proper divisors (1963002796044).

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

1455161273556 is a wasteful number, since it uses less digits than its factorization.

1455161273556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813848743 (or 813848741 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 51.

The spelling of 1455161273556 in words is "one trillion, four hundred fifty-five billion, one hundred sixty-one million, two hundred seventy-three thousand, five hundred fifty-six".