1616203204473 has 64 divisors (see below), whose sum is σ = 2603000623104. Its totient is φ = 878859072000.

The previous prime is 1616203204459. The next prime is 1616203204523. The reversal of 1616203204473 is 3744023026161.

It is not a de Polignac number, because 1616203204473 - 2¹⁰ = 1616203203449 is a prime.

It is a super-2 number, since 2×1616203204473² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1616203204423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4597086 + ... + 4936152.

It is an arithmetic number, because the mean of its divisors is an integer number (40671884736).

Almost surely, 2^{1616203204473} is an apocalyptic number.

1616203204473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1616203204473 is a deficient number, since it is larger than the sum of its proper divisors (986797418631).

1616203204473 is a wasteful number, since it uses less digits than its factorization.

1616203204473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339406.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 1616203204473 in words is "one trillion, six hundred sixteen billion, two hundred three million, two hundred four thousand, four hundred seventy-three".