145423050666 has 96 divisors (see below), whose sum is σ = 319441382208. Its totient is φ = 43980518400.

The previous prime is 145423050607. The next prime is 145423050679. The reversal of 145423050666 is 666050324541.

It is a super-2 number, since 2×145423050666² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90156076 + ... + 90157688.

It is an arithmetic number, because the mean of its divisors is an integer number (3327514398).

Almost surely, 2^145423050666 is an apocalyptic number.

145423050666 is an abundant number, since it is smaller than the sum of its proper divisors (174018331542).

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

145423050666 is a wasteful number, since it uses less digits than its factorization.

145423050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 145423050666 in words is "one hundred forty-five billion, four hundred twenty-three million, fifty thousand, six hundred sixty-six".