2145345534504 has 96 divisors (see below), whose sum is σ = 5855088002400. Its totient is φ = 709609380480.

The previous prime is 2145345534457. The next prime is 2145345534517. The reversal of 2145345534504 is 4054355435412.

2145345534504 is a `hidden beast` number, since 2 + 1 + 4 + 53 + 4 + 553 + 45 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2145345534504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19992514 + ... + 20099534.

It is an arithmetic number, because the mean of its divisors is an integer number (60990500025).

Almost surely, 2^{2145345534504} is an apocalyptic number.

2145345534504 is a gapful number since it is divisible by the number (24) 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 2145345534504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927544001200).

2145345534504 is an abundant number, since it is smaller than the sum of its proper divisors (3709742467896).

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

2145345534504 is a wasteful number, since it uses less digits than its factorization.

2145345534504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109175 (or 109168 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 45.

The spelling of 2145345534504 in words is "two trillion, one hundred forty-five billion, three hundred forty-five million, five hundred thirty-four thousand, five hundred four".