2011247065520 has 240 divisors, whose sum is σ = 6046082945568. Its totient is φ = 615053537280.

The previous prime is 2011247065519. The next prime is 2011247065559. The reversal of 2011247065520 is 255607421102.

It is a super-2 number, since 2×2011247065520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1845332 + ... + 2725388.

Almost surely, 2^{2011247065520} is an apocalyptic number.

2011247065520 is a gapful number since it is divisible by the number (20) 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 2011247065520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3023041472784).

2011247065520 is an abundant number, since it is smaller than the sum of its proper divisors (4034835880048).

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

2011247065520 is a wasteful number, since it uses less digits than its factorization.

2011247065520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880148 (or 880135 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 2011247065520 in words is "two trillion, eleven billion, two hundred forty-seven million, sixty-five thousand, five hundred twenty".