1455945221456 has 60 divisors (see below), whose sum is σ = 3101131535712. Its totient is φ = 661690920000.

The previous prime is 1455945221449. The next prime is 1455945221459. The reversal of 1455945221456 is 6541225495541.

It is a junction number, because it is equal to n+sod(n) for n = 1455945221398 and 1455945221407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455945221459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13247531 + ... + 13356981.

Almost surely, 2^{1455945221456} is an apocalyptic number.

1455945221456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1455945221456 is an abundant number, since it is smaller than the sum of its proper divisors (1645186314256).

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

1455945221456 is a wasteful number, since it uses less digits than its factorization.

1455945221456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116352 (or 116335 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 53.

The spelling of 1455945221456 in words is "one trillion, four hundred fifty-five billion, nine hundred forty-five million, two hundred twenty-one thousand, four hundred fifty-six".