1446156665040 has 160 divisors (see below), whose sum is σ = 4750114544640. Its totient is φ = 362703265792.

The previous prime is 1446156665039. The next prime is 1446156665087. The reversal of 1446156665040 is 405666516441.

It is a super-2 number, since 2×1446156665040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5747962 + ... + 5994278.

It is an arithmetic number, because the mean of its divisors is an integer number (29688215904).

Almost surely, 2^{1446156665040} is an apocalyptic number.

1446156665040 is a gapful number since it is divisible by the number (10) 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 1446156665040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375057272320).

1446156665040 is an abundant number, since it is smaller than the sum of its proper divisors (3303957879600).

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

1446156665040 is a wasteful number, since it uses less digits than its factorization.

1446156665040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247789 (or 247783 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 1446156665040 in words is "one trillion, four hundred forty-six billion, one hundred fifty-six million, six hundred sixty-five thousand, forty".