145423050665 has 16 divisors (see below), whose sum is σ = 176177792448. Its totient is φ = 115229894976.

The previous prime is 145423050607. The next prime is 145423050679. The reversal of 145423050665 is 566050324541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145423050665 - 2¹⁶ = 145422985129 is a prime.

It is a super-2 number, since 2×145423050665² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65699 + ... + 543288.

It is an arithmetic number, because the mean of its divisors is an integer number (11011112028).

Almost surely, 2^145423050665 is an apocalyptic number.

It is an amenable number.

145423050665 is a deficient number, since it is larger than the sum of its proper divisors (30754741783).

145423050665 is a wasteful number, since it uses less digits than its factorization.

145423050665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609448.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 145423050665 in words is "one hundred forty-five billion, four hundred twenty-three million, fifty thousand, six hundred sixty-five".