10511415420 has 192 divisors, whose sum is σ = 32690552832. Its totient is φ = 2502400000.

The previous prime is 10511415407. The next prime is 10511415437. The reversal of 10511415420 is 2451411501.

It is a super-2 number, since 2×10511415420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9131845 + ... + 9132995.

It is an arithmetic number, because the mean of its divisors is an integer number (170263296).

Almost surely, 2^10511415420 is an apocalyptic number.

10511415420 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 10511415420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16345276416).

10511415420 is an abundant number, since it is smaller than the sum of its proper divisors (22179137412).

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

10511415420 is a wasteful number, since it uses less digits than its factorization.

10511415420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 10511415420 its reverse (2451411501), we get a palindrome (12962826921).

The spelling of 10511415420 in words is "ten billion, five hundred eleven million, four hundred fifteen thousand, four hundred twenty".