121587610480 has 160 divisors (see below), whose sum is σ = 341584565760. Its totient is φ = 39318359040.

The previous prime is 121587610471. The next prime is 121587610493. The reversal of 121587610480 is 84016785121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2390110 + ... + 2440450.

It is an arithmetic number, because the mean of its divisors is an integer number (2134903536).

Almost surely, 2^121587610480 is an apocalyptic number.

121587610480 is a gapful number since it is divisible by the number (10) 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 121587610480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170792282880).

121587610480 is an abundant number, since it is smaller than the sum of its proper divisors (219996955280).

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

121587610480 is a wasteful number, since it uses less digits than its factorization.

121587610480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50607 (or 50601 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 121587610480 in words is "one hundred twenty-one billion, five hundred eighty-seven million, six hundred ten thousand, four hundred eighty".