1600401553406 has 16 divisors (see below), whose sum is σ = 2466906339744. Its totient is φ = 778124402784.

The previous prime is 1600401553393. The next prime is 1600401553409. The reversal of 1600401553406 is 6043551040061.

It is a super-2 number, since 2×1600401553406² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600401553409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6111530 + ... + 6368013.

It is an arithmetic number, because the mean of its divisors is an integer number (154181646234).

Almost surely, 2^{1600401553406} is an apocalyptic number.

1600401553406 is a deficient number, since it is larger than the sum of its proper divisors (866504786338).

1600401553406 is a wasteful number, since it uses less digits than its factorization.

1600401553406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481315.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 1600401553406 its reverse (6043551040061), we get a palindrome (7643952593467).

The spelling of 1600401553406 in words is "one trillion, six hundred billion, four hundred one million, five hundred fifty-three thousand, four hundred six".