10534521440 has 96 divisors (see below), whose sum is σ = 25781988960. Its totient is φ = 4062822400.

The previous prime is 10534521383. The next prime is 10534521451. The reversal of 10534521440 is 4412543501.

It is a super-2 number, since 2×10534521440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5061200 + ... + 5063280.

It is an arithmetic number, because the mean of its divisors is an integer number (268562385).

Almost surely, 2^10534521440 is an apocalyptic number.

10534521440 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 10534521440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12890994480).

10534521440 is an abundant number, since it is smaller than the sum of its proper divisors (15247467520).

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

10534521440 is a wasteful number, since it uses less digits than its factorization.

10534521440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3208 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 10534521440 in words is "ten billion, five hundred thirty-four million, five hundred twenty-one thousand, four hundred forty".