78655670047516 has 192 divisors, whose sum is σ = 152285721477120. Its totient is φ = 35413090755840.

The previous prime is 78655670047499. The next prime is 78655670047517. The reversal of 78655670047516 is 61574007655687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78655670047517) 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 63 ways as a sum of consecutive naturals, for example, 52055373201 + ... + 52055374711.

It is an arithmetic number, because the mean of its divisors is an integer number (793154799360).

Almost surely, 2^{78655670047516} is an apocalyptic number.

78655670047516 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

78655670047516 is a deficient number, since it is larger than the sum of its proper divisors (73630051429604).

78655670047516 is a wasteful number, since it uses less digits than its factorization.

78655670047516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 296352000, while the sum is 67.

The spelling of 78655670047516 in words is "seventy-eight trillion, six hundred fifty-five billion, six hundred seventy million, forty-seven thousand, five hundred sixteen".