83155563462378 has 32 divisors (see below), whose sum is σ = 182013697562112. Its totient is φ = 25117630972400.

The previous prime is 83155563462373. The next prime is 83155563462403. The reversal of 83155563462378 is 87326436555138.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (83155563462373) 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, 2025594876 + ... + 2025635927.

It is an arithmetic number, because the mean of its divisors is an integer number (5687928048816).

Almost surely, 2^{83155563462378} is an apocalyptic number.

83155563462378 is an abundant number, since it is smaller than the sum of its proper divisors (98858134099734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83155563462378 is a wasteful number, since it uses less digits than its factorization.

83155563462378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051231130.

The product of its digits is 435456000, while the sum is 66.

The spelling of 83155563462378 in words is "eighty-three trillion, one hundred fifty-five billion, five hundred sixty-three million, four hundred sixty-two thousand, three hundred seventy-eight".