149899465665 has 48 divisors (see below), whose sum is σ = 264945330000. Its totient is φ = 78373601280.

The previous prime is 149899465657. The next prime is 149899465669. The reversal of 149899465665 is 566564998941.

149899465665 is a `hidden beast` number, since 1 + 498 + 99 + 46 + 5 + 6 + 6 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1529670321 + 148369795344 = 39111^2 + 385188^2 .

It is not a de Polignac number, because 149899465665 - 2³ = 149899465657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149899465593 and 149899465602.

It is not an unprimeable number, because it can be changed into a prime (149899465669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2953705 + ... + 3004025.

It is an arithmetic number, because the mean of its divisors is an integer number (5519694375).

Almost surely, 2^149899465665 is an apocalyptic number.

149899465665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149899465665 is a deficient number, since it is larger than the sum of its proper divisors (115045864335).

149899465665 is a wasteful number, since it uses less digits than its factorization.

149899465665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51634 (or 51631 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 72.

The spelling of 149899465665 in words is "one hundred forty-nine billion, eight hundred ninety-nine million, four hundred sixty-five thousand, six hundred sixty-five".