120245541555500 has 96 divisors (see below), whose sum is σ = 269912229507648. Its totient is φ = 46763869824000.

The previous prime is 120245541555497. The next prime is 120245541555509. The reversal of 120245541555500 is 5555145542021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120245541555509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22790639 + ... + 27566361.

It is an arithmetic number, because the mean of its divisors is an integer number (2811585724038).

Almost surely, 2^{120245541555500} is an apocalyptic number.

120245541555500 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 120245541555500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134956114753824).

120245541555500 is an abundant number, since it is smaller than the sum of its proper divisors (149666687952148).

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

120245541555500 is a wasteful number, since it uses less digits than its factorization.

120245541555500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777140 (or 4777128 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 120245541555500 in words is "one hundred twenty trillion, two hundred forty-five billion, five hundred forty-one million, five hundred fifty-five thousand, five hundred".