42216553406 has 24 divisors (see below), whose sum is σ = 67179361392. Its totient is φ = 19859452800.

The previous prime is 42216553403. The next prime is 42216553439. The reversal of 42216553406 is 60435561224.

It is a super-3 number, since 3×42216553406³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42216553406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42216553403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47846 + ... + 294486.

It is an arithmetic number, because the mean of its divisors is an integer number (2799140058).

Almost surely, 2^42216553406 is an apocalyptic number.

42216553406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42216553406 is a deficient number, since it is larger than the sum of its proper divisors (24962807986).

42216553406 is a wasteful number, since it uses less digits than its factorization.

42216553406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246788 (or 246727 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 42216553406 in words is "forty-two billion, two hundred sixteen million, five hundred fifty-three thousand, four hundred six".