155794688465 has 8 divisors (see below), whose sum is σ = 201334674408. Its totient is φ = 115048385280.

The previous prime is 155794688453. The next prime is 155794688471. The reversal of 155794688465 is 564886497551.

It can be written as a sum of positive squares in 4 ways, for example, as 10273038736 + 145521649729 = 101356^2 + 381473^2 .

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

It is not a de Polignac number, because 155794688465 - 2¹² = 155794684369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155794688395 and 155794688404.

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, 1198420616 + ... + 1198420745.

It is an arithmetic number, because the mean of its divisors is an integer number (25166834301).

Almost surely, 2^155794688465 is an apocalyptic number.

It is an amenable number.

155794688465 is a deficient number, since it is larger than the sum of its proper divisors (45539985943).

155794688465 is a wasteful number, since it uses less digits than its factorization.

155794688465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396841379.

The product of its digits is 290304000, while the sum is 68.

The spelling of 155794688465 in words is "one hundred fifty-five billion, seven hundred ninety-four million, six hundred eighty-eight thousand, four hundred sixty-five".