1041404657520 has 160 divisors (see below), whose sum is σ = 3244712110848. Its totient is φ = 276304328704.

The previous prime is 1041404657509. The next prime is 1041404657521. The reversal of 1041404657520 is 257564041401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041404657521) 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, 38878372 + ... + 38905148.

Almost surely, 2^{1041404657520} is an apocalyptic number.

1041404657520 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 1041404657520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622356055424).

1041404657520 is an abundant number, since it is smaller than the sum of its proper divisors (2203307453328).

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

1041404657520 is a wasteful number, since it uses less digits than its factorization.

1041404657520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607 (or 27601 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

Adding to 1041404657520 its reverse (257564041401), we get a palindrome (1298968698921).

The spelling of 1041404657520 in words is "one trillion, forty-one billion, four hundred four million, six hundred fifty-seven thousand, five hundred twenty".