65665151655 has 8 divisors (see below), whose sum is σ = 105064242672. Its totient is φ = 35021414208.

The previous prime is 65665151621. The next prime is 65665151759. The reversal of 65665151655 is 55615156656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65665151655 - 2¹⁶ = 65665086119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65665151598 and 65665151607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188838374 + ... + 2188838403.

It is an arithmetic number, because the mean of its divisors is an integer number (13133030334).

Almost surely, 2^65665151655 is an apocalyptic number.

65665151655 is a deficient number, since it is larger than the sum of its proper divisors (39399091017).

65665151655 is a wasteful number, since it uses less digits than its factorization.

65665151655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377676785.

The product of its digits is 4050000, while the sum is 51.

The spelling of 65665151655 in words is "sixty-five billion, six hundred sixty-five million, one hundred fifty-one thousand, six hundred fifty-five".