145264605666 has 8 divisors (see below), whose sum is σ = 290529211344. Its totient is φ = 48421535220.

The previous prime is 145264605613. The next prime is 145264605721. The reversal of 145264605666 is 666506462541.

It is a sphenic number, since it is the product of 3 distinct primes.

145264605666 is an admirable number.

It is a super-2 number, since 2×145264605666² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12105383800 + ... + 12105383811.

It is an arithmetic number, because the mean of its divisors is an integer number (36316151418).

Almost surely, 2^145264605666 is an apocalyptic number.

145264605666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145264605666 is a wasteful number, since it uses less digits than its factorization.

145264605666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24210767616.

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 145264605666 in words is "one hundred forty-five billion, two hundred sixty-four million, six hundred five thousand, six hundred sixty-six".