1449532751664 has 160 divisors (see below), whose sum is σ = 3962842790400. Its totient is φ = 455297587200.

The previous prime is 1449532751647. The next prime is 1449532751669. The reversal of 1449532751664 is 4661572359441.

It is a super-2 number, since 2×1449532751664² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1449532751669) 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 31 ways as a sum of consecutive naturals, for example, 235654989 + ... + 235661139.

It is an arithmetic number, because the mean of its divisors is an integer number (24767767440).

Almost surely, 2^{1449532751664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1449532751664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981421395200).

1449532751664 is an abundant number, since it is smaller than the sum of its proper divisors (2513310038736).

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

1449532751664 is a wasteful number, since it uses less digits than its factorization.

1449532751664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523 (or 7517 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The spelling of 1449532751664 in words is "one trillion, four hundred forty-nine billion, five hundred thirty-two million, seven hundred fifty-one thousand, six hundred sixty-four".