1520053122040 has 128 divisors (see below), whose sum is σ = 3529945497600. Its totient is φ = 588847034880.

The previous prime is 1520053121957. The next prime is 1520053122073. The reversal of 1520053122040 is 402213500251.

It is a super-2 number, since 2×1520053122040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1520053121996 and 1520053122014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70732177 + ... + 70753663.

It is an arithmetic number, because the mean of its divisors is an integer number (27577699200).

Almost surely, 2^{1520053122040} is an apocalyptic number.

1520053122040 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 1520053122040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1764972748800).

1520053122040 is an abundant number, since it is smaller than the sum of its proper divisors (2009892375560).

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

1520053122040 is a wasteful number, since it uses less digits than its factorization.

1520053122040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22005 (or 22001 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1520053122040 its reverse (402213500251), we get a palindrome (1922266622291).

The spelling of 1520053122040 in words is "one trillion, five hundred twenty billion, fifty-three million, one hundred twenty-two thousand, forty".