11507220500 has 48 divisors (see below), whose sum is σ = 25232171328. Its totient is φ = 4584500000.

The previous prime is 11507220467. The next prime is 11507220533. The reversal of 11507220500 is 502270511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11507220467) and next prime (11507220533).

It is a super-2 number, since 2×11507220500² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79655 + ... + 171345.

It is an arithmetic number, because the mean of its divisors is an integer number (525670236).

Almost surely, 2^11507220500 is an apocalyptic number.

11507220500 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 11507220500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12616085664).

11507220500 is an abundant number, since it is smaller than the sum of its proper divisors (13724950828).

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

11507220500 is a wasteful number, since it uses less digits than its factorization.

11507220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91961 (or 91949 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The spelling of 11507220500 in words is "eleven billion, five hundred seven million, two hundred twenty thousand, five hundred".