145411664665 has 16 divisors (see below), whose sum is σ = 177426222336. Its totient is φ = 114383304000.

The previous prime is 145411664659. The next prime is 145411664669. The reversal of 145411664665 is 566466114541.

It is not a de Polignac number, because 145411664665 - 2²⁵ = 145378110233 is a prime.

It is a super-2 number, since 2×145411664665² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145411664669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416661 + ... + 681490.

It is an arithmetic number, because the mean of its divisors is an integer number (11089138896).

Almost surely, 2^145411664665 is an apocalyptic number.

It is an amenable number.

145411664665 is a deficient number, since it is larger than the sum of its proper divisors (32014557671).

145411664665 is a wasteful number, since it uses less digits than its factorization.

145411664665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098600.

The product of its digits is 2073600, while the sum is 49.

The spelling of 145411664665 in words is "one hundred forty-five billion, four hundred eleven million, six hundred sixty-four thousand, six hundred sixty-five".