145660487177 has 4 divisors (see below), whose sum is σ = 145998446976. Its totient is φ = 145322527380.

The previous prime is 145660487171. The next prime is 145660487221. The reversal of 145660487177 is 771784066541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145660487177 - 2²⁶ = 145593378313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145660487171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168979253 + ... + 168980114.

It is an arithmetic number, because the mean of its divisors is an integer number (36499611744).

Almost surely, 2^145660487177 is an apocalyptic number.

It is an amenable number.

145660487177 is a deficient number, since it is larger than the sum of its proper divisors (337959799).

145660487177 is an equidigital number, since it uses as much as digits as its factorization.

145660487177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337959798.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 145660487177 in words is "one hundred forty-five billion, six hundred sixty million, four hundred eighty-seven thousand, one hundred seventy-seven".