1616674020651 has 24 divisors (see below), whose sum is σ = 2474264645424. Its totient is φ = 1013684467200.

The previous prime is 1616674020569. The next prime is 1616674020701. The reversal of 1616674020651 is 1560204766161.

1616674020651 is a `hidden beast` number, since 1 + 616 + 6 + 7 + 4 + 0 + 20 + 6 + 5 + 1 = 666.

It is not a de Polignac number, because 1616674020651 - 2⁷ = 1616674020523 is a prime.

It is a super-2 number, since 2×1616674020651² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616674020597 and 1616674020606.

It is not an unprimeable number, because it can be changed into a prime (1616674020151) 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 23 ways as a sum of consecutive naturals, for example, 3419106 + ... + 3863111.

It is an arithmetic number, because the mean of its divisors is an integer number (103094360226).

Almost surely, 2^{1616674020651} is an apocalyptic number.

1616674020651 is a deficient number, since it is larger than the sum of its proper divisors (857590624773).

1616674020651 is a wasteful number, since it uses less digits than its factorization.

1616674020651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283691 (or 7283688 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 1616674020651 in words is "one trillion, six hundred sixteen billion, six hundred seventy-four million, twenty thousand, six hundred fifty-one".