56415420623406 has 32 divisors (see below), whose sum is σ = 128657791831968. Its totient is φ = 16337497374720.

The previous prime is 56415420623357. The next prime is 56415420623449. The reversal of 56415420623406 is 60432602451465.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21272781715 + ... + 21272784366.

It is an arithmetic number, because the mean of its divisors is an integer number (4020555994749).

Almost surely, 2^{56415420623406} is an apocalyptic number.

56415420623406 is an abundant number, since it is smaller than the sum of its proper divisors (72242371208562).

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

56415420623406 is a wasteful number, since it uses less digits than its factorization.

56415420623406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42545566116.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 56415420623406 in words is "fifty-six trillion, four hundred fifteen billion, four hundred twenty million, six hundred twenty-three thousand, four hundred six".