121677316376620 has 48 divisors (see below), whose sum is σ = 275531176015200. Its totient is φ = 44984681786880.

The previous prime is 121677316376599. The next prime is 121677316376657. The reversal of 121677316376620 is 26673613776121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3904904715 + ... + 3904935874.

It is an arithmetic number, because the mean of its divisors is an integer number (5740232833650).

Almost surely, 2^{121677316376620} is an apocalyptic number.

121677316376620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121677316376620 is an abundant number, since it is smaller than the sum of its proper divisors (153853859638580).

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

121677316376620 is a wasteful number, since it uses less digits than its factorization.

121677316376620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809840658 (or 7809840656 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 58.

The spelling of 121677316376620 in words is "one hundred twenty-one trillion, six hundred seventy-seven billion, three hundred sixteen million, three hundred seventy-six thousand, six hundred twenty".