121675758336 has 360 divisors, whose sum is σ = 400629265344. Its totient is φ = 36421539840.

The previous prime is 121675758329. The next prime is 121675758341. The reversal of 121675758336 is 633857576121.

121675758336 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 7 + 57 + 583 + 3 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18928755 + ... + 18935181.

Almost surely, 2^121675758336 is an apocalyptic number.

121675758336 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 121675758336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200314632672).

121675758336 is an abundant number, since it is smaller than the sum of its proper divisors (278953507008).

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

121675758336 is an equidigital number, since it uses as much as digits as its factorization.

121675758336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549 (or 6526 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The spelling of 121675758336 in words is "one hundred twenty-one billion, six hundred seventy-five million, seven hundred fifty-eight thousand, three hundred thirty-six".