120663056652840 has 1536 divisors, whose sum is σ = 457162959052800. Its totient is φ = 27391386746880.

The previous prime is 120663056652821. The next prime is 120663056652841. The reversal of 120663056652840 is 48256650366021.

120663056652840 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 6 + 30 + 566 + 5 + 2 + 8 + 40 = 666.

It is not an unprimeable number, because it can be changed into a prime (120663056652841) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 34075981470 + ... + 34075985010.

It is an arithmetic number, because the mean of its divisors is an integer number (297632134800).

Almost surely, 2^{120663056652840} is an apocalyptic number.

120663056652840 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 120663056652840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228581479526400).

120663056652840 is an abundant number, since it is smaller than the sum of its proper divisors (336499902399960).

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

120663056652840 is a wasteful number, since it uses less digits than its factorization.

120663056652840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 120663056652840 in words is "one hundred twenty trillion, six hundred sixty-three billion, fifty-six million, six hundred fifty-two thousand, eight hundred forty".