145206404665 has 16 divisors (see below), whose sum is σ = 201539495808. Its totient is φ = 98370464256.

The previous prime is 145206404653. The next prime is 145206404671. The reversal of 145206404665 is 566404602541.

It is a cyclic number.

It is not a de Polignac number, because 145206404665 - 2¹³ = 145206396473 is a prime.

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, 24989592 + ... + 24995401.

It is an arithmetic number, because the mean of its divisors is an integer number (12596218488).

Almost surely, 2^145206404665 is an apocalyptic number.

It is an amenable number.

145206404665 is a deficient number, since it is larger than the sum of its proper divisors (56333091143).

145206404665 is an equidigital number, since it uses as much as digits as its factorization.

145206404665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49985088.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 145206404665 in words is "one hundred forty-five billion, two hundred six million, four hundred four thousand, six hundred sixty-five".