120781151580 has 288 divisors, whose sum is σ = 358514118144. Its totient is φ = 30373056000.

The previous prime is 120781151573. The next prime is 120781151641. The reversal of 120781151580 is 85151187021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 667299090 + ... + 667299270.

It is an arithmetic number, because the mean of its divisors is an integer number (1244840688).

Almost surely, 2^120781151580 is an apocalyptic number.

120781151580 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 120781151580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179257059072).

120781151580 is an abundant number, since it is smaller than the sum of its proper divisors (237732966564).

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

120781151580 is a wasteful number, since it uses less digits than its factorization.

120781151580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 39.

The spelling of 120781151580 in words is "one hundred twenty billion, seven hundred eighty-one million, one hundred fifty-one thousand, five hundred eighty".