1616234960978 has 32 divisors (see below), whose sum is σ = 2688489318528. Its totient is φ = 722505369600.

The previous prime is 1616234960969. The next prime is 1616234960981. The reversal of 1616234960978 is 8790694326161.

It is a super-2 number, since 2×1616234960978² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616234960978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9710051 + ... + 9875097.

It is an arithmetic number, because the mean of its divisors is an integer number (84015291204).

Almost surely, 2^{1616234960978} is an apocalyptic number.

1616234960978 is a deficient number, since it is larger than the sum of its proper divisors (1072254357550).

1616234960978 is a wasteful number, since it uses less digits than its factorization.

1616234960978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172418.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 1616234960978 in words is "one trillion, six hundred sixteen billion, two hundred thirty-four million, nine hundred sixty thousand, nine hundred seventy-eight".