1625045708520 has 576 divisors, whose sum is σ = 6056976631680. Its totient is φ = 376886974464.

The previous prime is 1625045708483. The next prime is 1625045708537. The reversal of 1625045708520 is 258075405261.

1625045708520 is a `hidden beast` number, since 1 + 6 + 2 + 50 + 4 + 5 + 70 + 8 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 93745774 + ... + 93763106.

It is an arithmetic number, because the mean of its divisors is an integer number (10515584430).

Almost surely, 2^{1625045708520} is an apocalyptic number.

1625045708520 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 1625045708520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3028488315840).

1625045708520 is an abundant number, since it is smaller than the sum of its proper divisors (4431930923160).

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

1625045708520 is a wasteful number, since it uses less digits than its factorization.

1625045708520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17466 (or 17446 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 1625045708520 in words is "one trillion, six hundred twenty-five billion, forty-five million, seven hundred eight thousand, five hundred twenty".