145770445506 has 32 divisors (see below), whose sum is σ = 336624543360. Its totient is φ = 41219329536.

The previous prime is 145770445451. The next prime is 145770445519. The reversal of 145770445506 is 605544077541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17886261 + ... + 17894408.

It is an arithmetic number, because the mean of its divisors is an integer number (10519516980).

Almost surely, 2^145770445506 is an apocalyptic number.

145770445506 is an abundant number, since it is smaller than the sum of its proper divisors (190854097854).

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

145770445506 is a wasteful number, since it uses less digits than its factorization.

145770445506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35780778.

The product of its (nonzero) digits is 2352000, while the sum is 48.

The spelling of 145770445506 in words is "one hundred forty-five billion, seven hundred seventy million, four hundred forty-five thousand, five hundred six".