1455664401 has 12 divisors (see below), whose sum is σ = 2147363712. Its totient is φ = 949794936.

The previous prime is 1455664381. The next prime is 1455664403. The reversal of 1455664401 is 1044665541.

1455664401 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 6 + 644 + 0 + 1 = 666.

It is not a de Polignac number, because 1455664401 - 2¹⁴ = 1455648017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1455664403) 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, 1720221 + ... + 1721066.

It is an arithmetic number, because the mean of its divisors is an integer number (178946976).

Almost surely, 2^1455664401 is an apocalyptic number.

It is an amenable number.

1455664401 is a deficient number, since it is larger than the sum of its proper divisors (691699311).

1455664401 is a wasteful number, since it uses less digits than its factorization.

1455664401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441340 (or 3441337 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1455664401 is about 38153.1702614606. The cubic root of 1455664401 is about 1133.3231335779.

It can be divided in two parts, 1455 and 664401, that added together give a square (665856 = 816²).

The spelling of 1455664401 in words is "one billion, four hundred fifty-five million, six hundred sixty-four thousand, four hundred one".