121466754541550 has 72 divisors (see below), whose sum is σ = 248366078944200. Its totient is φ = 44164069892800.

The previous prime is 121466754541549. The next prime is 121466754541589. The reversal of 121466754541550 is 55145457664121.

It is a super-3 number, since 3×121466754541550³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46083221 + ... + 48647679.

It is an arithmetic number, because the mean of its divisors is an integer number (3449528874225).

Almost surely, 2^{121466754541550} is an apocalyptic number.

121466754541550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121466754541550 is an abundant number, since it is smaller than the sum of its proper divisors (126899324402650).

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

121466754541550 is a wasteful number, since it uses less digits than its factorization.

121466754541550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572322 (or 2572306 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 56.

The spelling of 121466754541550 in words is "one hundred twenty-one trillion, four hundred sixty-six billion, seven hundred fifty-four million, five hundred forty-one thousand, five hundred fifty".