83155070687638 has 8 divisors (see below), whose sum is σ = 125277289901280. Its totient is φ = 41395974053880.

The previous prime is 83155070687617. The next prime is 83155070687681. The reversal of 83155070687638 is 83678607055138.

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

It is a congruent number.

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, 90780644398 + ... + 90780645313.

It is an arithmetic number, because the mean of its divisors is an integer number (15659661237660).

Almost surely, 2^{83155070687638} is an apocalyptic number.

83155070687638 is a deficient number, since it is larger than the sum of its proper divisors (42122219213642).

83155070687638 is a wasteful number, since it uses less digits than its factorization.

83155070687638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181561289942.

The product of its (nonzero) digits is 203212800, while the sum is 67.

The spelling of 83155070687638 in words is "eighty-three trillion, one hundred fifty-five billion, seventy million, six hundred eighty-seven thousand, six hundred thirty-eight".