120406340664 has 24 divisors (see below), whose sum is σ = 326100506160. Its totient is φ = 40135446864.

The previous prime is 120406340629. The next prime is 120406340689. The reversal of 120406340664 is 466043604021.

120406340664 is a `hidden beast` number, since 12 + 0 + 4 + 0 + 634 + 0 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 836155072 + ... + 836155215.

It is an arithmetic number, because the mean of its divisors is an integer number (13587521090).

Almost surely, 2^120406340664 is an apocalyptic number.

It is an amenable number.

120406340664 is an abundant number, since it is smaller than the sum of its proper divisors (205694165496).

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

120406340664 is a wasteful number, since it uses less digits than its factorization.

120406340664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672310299 (or 1672310292 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 120406340664 its reverse (466043604021), we get a palindrome (586449944685).

The spelling of 120406340664 in words is "one hundred twenty billion, four hundred six million, three hundred forty thousand, six hundred sixty-four".