149664065887 has 6 divisors (see below), whose sum is σ = 171045816504. Its totient is φ = 128282607720.

The previous prime is 149664065879. The next prime is 149664065893. The reversal of 149664065887 is 788560466941.

It is not a de Polignac number, because 149664065887 - 2³ = 149664065879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149664065827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 950437 + ... + 1096657.

It is an arithmetic number, because the mean of its divisors is an integer number (28507636084).

Almost surely, 2^149664065887 is an apocalyptic number.

149664065887 is a deficient number, since it is larger than the sum of its proper divisors (21381750617).

149664065887 is an frugal number, since it uses more digits than its factorization.

149664065887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292449 (or 146228 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 149664065887 in words is "one hundred forty-nine billion, six hundred sixty-four million, sixty-five thousand, eight hundred eighty-seven".