2145430501456 has 160 divisors (see below), whose sum is σ = 4717120370688. Its totient is φ = 936756817920.

The previous prime is 2145430501429. The next prime is 2145430501457. The reversal of 2145430501456 is 6541050345412.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145430501457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341245545 + ... + 341251831.

Almost surely, 2^{2145430501456} 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 2145430501456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358560185344).

2145430501456 is an abundant number, since it is smaller than the sum of its proper divisors (2571689869232).

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

2145430501456 is a wasteful number, since it uses less digits than its factorization.

2145430501456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7089 (or 7083 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 2145430501456 its reverse (6541050345412), we get a palindrome (8686480846868).

The spelling of 2145430501456 in words is "two trillion, one hundred forty-five billion, four hundred thirty million, five hundred one thousand, four hundred fifty-six".