11722550340 has 24 divisors (see below), whose sum is σ = 32823141120. Its totient is φ = 3126013408.

The previous prime is 11722550291. The next prime is 11722550363. The reversal of 11722550340 is 4305522711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11722550298 and 11722550307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97687860 + ... + 97687979.

It is an arithmetic number, because the mean of its divisors is an integer number (1367630880).

Almost surely, 2^11722550340 is an apocalyptic number.

11722550340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11722550340 is an abundant number, since it is smaller than the sum of its proper divisors (21100590780).

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

11722550340 is a wasteful number, since it uses less digits than its factorization.

11722550340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195375851 (or 195375849 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 11722550340 in words is "eleven billion, seven hundred twenty-two million, five hundred fifty thousand, three hundred forty".