157665061365 has 32 divisors (see below), whose sum is σ = 288429323520. Its totient is φ = 72043582464.

The previous prime is 157665061343. The next prime is 157665061373. The reversal of 157665061365 is 563160566751.

It is not a de Polignac number, because 157665061365 - 2¹⁰ = 157665060341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92644 + ... + 569133.

It is an arithmetic number, because the mean of its divisors is an integer number (9013416360).

Almost surely, 2^157665061365 is an apocalyptic number.

157665061365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157665061365 is a deficient number, since it is larger than the sum of its proper divisors (130764262155).

157665061365 is a wasteful number, since it uses less digits than its factorization.

157665061365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664061.

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 157665061365 in words is "one hundred fifty-seven billion, six hundred sixty-five million, sixty-one thousand, three hundred sixty-five".