11061512040 has 128 divisors (see below), whose sum is σ = 34159656960. Its totient is φ = 2864058624.

The previous prime is 11061512029. The next prime is 11061512051. The reversal of 11061512040 is 4021516011.

It is an interprime number because it is at equal distance from previous prime (11061512029) and next prime (11061512051).

It is a super-2 number, since 2×11061512040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11061511998 and 11061512016.

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, 708559 + ... + 724001.

It is an arithmetic number, because the mean of its divisors is an integer number (266872320).

Almost surely, 2^11061512040 is an apocalyptic number.

11061512040 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 11061512040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17079828480).

11061512040 is an abundant number, since it is smaller than the sum of its proper divisors (23098144920).

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

11061512040 is a wasteful number, since it uses less digits than its factorization.

11061512040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15631 (or 15627 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The spelling of 11061512040 in words is "eleven billion, sixty-one million, five hundred twelve thousand, forty".