145115166478 has 4 divisors (see below), whose sum is σ = 217672749720. Its totient is φ = 72557583238.

The previous prime is 145115166467. The next prime is 145115166481. The reversal of 145115166478 is 874661511541.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36278791618 + ... + 36278791621.

It is an arithmetic number, because the mean of its divisors is an integer number (54418187430).

Almost surely, 2^145115166478 is an apocalyptic number.

145115166478 is a deficient number, since it is larger than the sum of its proper divisors (72557583242).

145115166478 is an equidigital number, since it uses as much as digits as its factorization.

145115166478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72557583241.

The product of its digits is 806400, while the sum is 49.

The spelling of 145115166478 in words is "one hundred forty-five billion, one hundred fifteen million, one hundred sixty-six thousand, four hundred seventy-eight".