120615645340 has 24 divisors (see below), whose sum is σ = 266624058960. Its totient is φ = 45706981248.

The previous prime is 120615645313. The next prime is 120615645341. The reversal of 120615645340 is 43546516021.

It is a self number, because there is not a number n which added to its sum of digits gives 120615645340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120615645341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158704417 + ... + 158705176.

It is an arithmetic number, because the mean of its divisors is an integer number (11109335790).

Almost surely, 2^120615645340 is an apocalyptic number.

120615645340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120615645340 is an abundant number, since it is smaller than the sum of its proper divisors (146008413620).

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

120615645340 is a wasteful number, since it uses less digits than its factorization.

120615645340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317409621 (or 317409619 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 120615645340 in words is "one hundred twenty billion, six hundred fifteen million, six hundred forty-five thousand, three hundred forty".