122485499136 has 1296 divisors, whose sum is σ = 502291153728. Its totient is φ = 29262643200.

The previous prime is 122485499113. The next prime is 122485499153. The reversal of 122485499136 is 631994584221.

It is a happy number.

122485499136 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 8 + 549 + 91 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 143 ways as a sum of consecutive naturals, for example, 435891316 + ... + 435891596.

Almost surely, 2^122485499136 is an apocalyptic number.

122485499136 is a gapful number since it is divisible by the number (16) 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 122485499136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251145576864).

122485499136 is an abundant number, since it is smaller than the sum of its proper divisors (379805654592).

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

122485499136 is a wasteful number, since it uses less digits than its factorization.

122485499136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 317 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 122485499136 in words is "one hundred twenty-two billion, four hundred eighty-five million, four hundred ninety-nine thousand, one hundred thirty-six".