120401106656406 has 8 divisors (see below), whose sum is σ = 240802213312824. Its totient is φ = 40133702218800.

The previous prime is 120401106656381. The next prime is 120401106656431. The reversal of 120401106656406 is 604656601104021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120401106656381) and next prime (120401106656431).

It is a sphenic number, since it is the product of 3 distinct primes.

120401106656406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10033425554695 + ... + 10033425554706.

It is an arithmetic number, because the mean of its divisors is an integer number (30100276664103).

Almost surely, 2^{120401106656406} is an apocalyptic number.

120401106656406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120401106656406 is a wasteful number, since it uses less digits than its factorization.

120401106656406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20066851109406.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 120401106656406 in words is "one hundred twenty trillion, four hundred one billion, one hundred six million, six hundred fifty-six thousand, four hundred six".