120403560645 has 32 divisors (see below), whose sum is σ = 214097644800. Its totient is φ = 64201171392.

The previous prime is 120403560631. The next prime is 120403560731. The reversal of 120403560645 is 546065304021.

120403560645 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 0 + 3 + 5 + 6 + 0 + 645 = 666.

It is not a de Polignac number, because 120403560645 - 2⁶ = 120403560581 is a prime.

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, 536359 + ... + 726971.

It is an arithmetic number, because the mean of its divisors is an integer number (6690551400).

Almost surely, 2^120403560645 is an apocalyptic number.

120403560645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120403560645 is a deficient number, since it is larger than the sum of its proper divisors (93694084155).

120403560645 is a wasteful number, since it uses less digits than its factorization.

120403560645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195306 (or 195300 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 120403560645 its reverse (546065304021), we get a palindrome (666468864666).

The spelling of 120403560645 in words is "one hundred twenty billion, four hundred three million, five hundred sixty thousand, six hundred forty-five".