6520616180378 has 8 divisors (see below), whose sum is σ = 9781135028640. Its totient is φ = 3260237837500.

The previous prime is 6520616180347. The next prime is 6520616180399. The reversal of 6520616180378 is 8730816160256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35010248 + ... + 35196003.

It is an arithmetic number, because the mean of its divisors is an integer number (1222641878580).

Almost surely, 2^{6520616180378} is an apocalyptic number.

6520616180378 is a deficient number, since it is larger than the sum of its proper divisors (3260518848262).

6520616180378 is a wasteful number, since it uses less digits than its factorization.

6520616180378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70252692.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 6520616180378 in words is "six trillion, five hundred twenty billion, six hundred sixteen million, one hundred eighty thousand, three hundred seventy-eight".