1516668334851 has 16 divisors (see below), whose sum is σ = 2141358998688. Its totient is φ = 951554956800.

The previous prime is 1516668334847. The next prime is 1516668334861. The reversal of 1516668334851 is 1584338666151.

It is not a de Polignac number, because 1516668334851 - 2² = 1516668334847 is a prime.

It is a super-2 number, since 2×1516668334851² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1516668334791 and 1516668334800.

It is not an unprimeable number, because it can be changed into a prime (1516668334801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636240 + ... + 1854221.

It is an arithmetic number, because the mean of its divisors is an integer number (133834937418).

Almost surely, 2^{1516668334851} is an apocalyptic number.

1516668334851 is a deficient number, since it is larger than the sum of its proper divisors (624690663837).

1516668334851 is a wasteful number, since it uses less digits than its factorization.

1516668334851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502422.

The product of its digits is 12441600, while the sum is 57.

The spelling of 1516668334851 in words is "one trillion, five hundred sixteen billion, six hundred sixty-eight million, three hundred thirty-four thousand, eight hundred fifty-one".