145788917206 has 4 divisors (see below), whose sum is σ = 218683375812. Its totient is φ = 72894458602.

The previous prime is 145788917191. The next prime is 145788917249. The reversal of 145788917206 is 602719887541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602719887541 = 167 ⋅3609101123.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 36447229300 + ... + 36447229303.

It is an arithmetic number, because the mean of its divisors is an integer number (54670843953).

Almost surely, 2^145788917206 is an apocalyptic number.

145788917206 is a deficient number, since it is larger than the sum of its proper divisors (72894458606).

145788917206 is an equidigital number, since it uses as much as digits as its factorization.

145788917206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72894458605.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 145788917206 in words is "one hundred forty-five billion, seven hundred eighty-eight million, nine hundred seventeen thousand, two hundred six".