148665507665 has 16 divisors (see below), whose sum is σ = 179630384400. Its totient is φ = 118111530240.

The previous prime is 148665507611. The next prime is 148665507719. The reversal of 148665507665 is 566705566841.

It is an interprime number because it is at equal distance from previous prime (148665507611) and next prime (148665507719).

It can be written as a sum of positive squares in 8 ways, for example, as 7316578369 + 141348929296 = 85537^2 + 375964^2 .

It is not a de Polignac number, because 148665507665 - 2²⁴ = 148648730449 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, 4618607 + ... + 4650683.

It is an arithmetic number, because the mean of its divisors is an integer number (11226899025).

Almost surely, 2^148665507665 is an apocalyptic number.

It is an amenable number.

148665507665 is a deficient number, since it is larger than the sum of its proper divisors (30964876735).

148665507665 is a wasteful number, since it uses less digits than its factorization.

148665507665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38452.

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 148665507665 in words is "one hundred forty-eight billion, six hundred sixty-five million, five hundred seven thousand, six hundred sixty-five".