1616404472031 has 16 divisors (see below), whose sum is σ = 2156414538240. Its totient is φ = 1076998863360.

The previous prime is 1616404472009. The next prime is 1616404472041. The reversal of 1616404472031 is 1302744046161.

It is not a de Polignac number, because 1616404472031 - 2⁶ = 1616404471967 is a prime.

It is a super-2 number, since 2×1616404472031² (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 (1616404472041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47480986 + ... + 47515016.

It is an arithmetic number, because the mean of its divisors is an integer number (134775908640).

Almost surely, 2^{1616404472031} is an apocalyptic number.

1616404472031 is a deficient number, since it is larger than the sum of its proper divisors (540010066209).

1616404472031 is a wasteful number, since it uses less digits than its factorization.

1616404472031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42446.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 1616404472031 in words is "one trillion, six hundred sixteen billion, four hundred four million, four hundred seventy-two thousand, thirty-one".