120125400663 has 16 divisors (see below), whose sum is σ = 169602336000. Its totient is φ = 75366784896.

The previous prime is 120125400653. The next prime is 120125400677. The reversal of 120125400663 is 366004521021.

It is not a de Polignac number, because 120125400663 - 2⁸ = 120125400407 is a prime.

It is a super-2 number, since 2×120125400663² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120125400663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120125400653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601206 + ... + 775692.

It is an arithmetic number, because the mean of its divisors is an integer number (10600146000).

Almost surely, 2^120125400663 is an apocalyptic number.

120125400663 is a deficient number, since it is larger than the sum of its proper divisors (49476935337).

120125400663 is a wasteful number, since it uses less digits than its factorization.

120125400663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188006.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 120125400663 its reverse (366004521021), we get a palindrome (486129921684).

The spelling of 120125400663 in words is "one hundred twenty billion, one hundred twenty-five million, four hundred thousand, six hundred sixty-three".