80778007525558 has 32 divisors (see below), whose sum is σ = 138637022135040. Its totient is φ = 34579038684960.

The previous prime is 80778007525513. The next prime is 80778007525609. The reversal of 80778007525558 is 85552570087708.

It is a super-3 number, since 3×80778007525558³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 80778007525493 and 80778007525502.

It is a congruent number.

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, 722020848 + ... + 722132716.

It is an arithmetic number, because the mean of its divisors is an integer number (4332406941720).

Almost surely, 2^{80778007525558} is an apocalyptic number.

80778007525558 is a deficient number, since it is larger than the sum of its proper divisors (57859014609482).

80778007525558 is a wasteful number, since it uses less digits than its factorization.

80778007525558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171172.

The product of its (nonzero) digits is 219520000, while the sum is 67.

The spelling of 80778007525558 in words is "eighty trillion, seven hundred seventy-eight billion, seven million, five hundred twenty-five thousand, five hundred fifty-eight".