65355855478 has 16 divisors (see below), whose sum is σ = 99240830640. Its totient is φ = 32277124000.

The previous prime is 65355855457. The next prime is 65355855491. The reversal of 65355855478 is 87455855356.

It is a super-2 number, since 2×65355855478² (a number of 22 digits) contains 22 as substring.

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, 301453 + ... + 470728.

It is an arithmetic number, because the mean of its divisors is an integer number (6202551915).

Almost surely, 2^65355855478 is an apocalyptic number.

65355855478 is a deficient number, since it is larger than the sum of its proper divisors (33884975162).

65355855478 is a wasteful number, since it uses less digits than its factorization.

65355855478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772703.

The product of its digits is 100800000, while the sum is 61.

The spelling of 65355855478 in words is "sixty-five billion, three hundred fifty-five million, eight hundred fifty-five thousand, four hundred seventy-eight".