86405505501 has 16 divisors (see below), whose sum is σ = 135912808448. Its totient is φ = 47781846000.

The previous prime is 86405505467. The next prime is 86405505533. The reversal of 86405505501 is 10550550468.

It is not a de Polignac number, because 86405505501 - 2²² = 86401311197 is a prime.

It is a super-2 number, since 2×86405505501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86405505501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86455505501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66363025 + ... + 66364326.

It is an arithmetic number, because the mean of its divisors is an integer number (8494550528).

Almost surely, 2^86405505501 is an apocalyptic number.

It is an amenable number.

86405505501 is a deficient number, since it is larger than the sum of its proper divisors (49507302947).

86405505501 is a wasteful number, since it uses less digits than its factorization.

86405505501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132727392.

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 86405505501 in words is "eighty-six billion, four hundred five million, five hundred five thousand, five hundred one".